Home / 45,146.81-62,333.39-28,157.69

Finding the Fourth Proportional to 45,146.81, 62,333.39 and 28,157.69

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Solution

The fourth proportional to 45,146.81, 62,333.39 and 28,157.69 is: 38,876.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,146.81 : 62,333.39 = 28,157.69 : x
  2. Step 2: Convert to fraction form
    45,146.81/62,333.39 = 28,157.69/x
  3. Step 3: Cross multiply
    45,146.81x = 62,333.39 × 28,157.69
  4. Step 4: Simplify right side
    45,146.81x = 1,755,164,131.48
  5. Step 5: Solve for x
    x = 1,755,164,131.48/45,146.81
  6. Step 6: Final answer
    x = 38,876.81

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.