Home / 74,157.59-102,344.81-42,331.27

Finding the Fourth Proportional to 74,157.59, 102,344.81 and 42,331.27

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Solution

The fourth proportional to 74,157.59, 102,344.81 and 42,331.27 is: 58,421.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,157.59 : 102,344.81 = 42,331.27 : x
  2. Step 2: Convert to fraction form
    74,157.59/102,344.81 = 42,331.27/x
  3. Step 3: Cross multiply
    74,157.59x = 102,344.81 × 42,331.27
  4. Step 4: Simplify right side
    74,157.59x = 4,332,385,317.69
  5. Step 5: Solve for x
    x = 4,332,385,317.69/74,157.59
  6. Step 6: Final answer
    x = 58,421.34

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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.