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Finding the Fourth Proportional to 61,139.44, 84,387.42 and 37,279.26

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Solution

The fourth proportional to 61,139.44, 84,387.42 and 37,279.26 is: 51,454.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,139.44 : 84,387.42 = 37,279.26 : x
  2. Step 2: Convert to fraction form
    61,139.44/84,387.42 = 37,279.26/x
  3. Step 3: Cross multiply
    61,139.44x = 84,387.42 × 37,279.26
  4. Step 4: Simplify right side
    61,139.44x = 3,145,900,570.91
  5. Step 5: Solve for x
    x = 3,145,900,570.91/61,139.44
  6. Step 6: Final answer
    x = 51,454.52

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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.