Home / 42,120.10-58,189.14-27,618.73

Finding the Fourth Proportional to 42,120.10, 58,189.14 and 27,618.73

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Solution

The fourth proportional to 42,120.10, 58,189.14 and 27,618.73 is: 38,155.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,120.10 : 58,189.14 = 27,618.73 : x
  2. Step 2: Convert to fraction form
    42,120.10/58,189.14 = 27,618.73/x
  3. Step 3: Cross multiply
    42,120.10x = 58,189.14 × 27,618.73
  4. Step 4: Simplify right side
    42,120.10x = 1,607,110,146.59
  5. Step 5: Solve for x
    x = 1,607,110,146.59/42,120.10
  6. Step 6: Final answer
    x = 38,155.42

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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.