Home / 78,034.26-107,687.31-42,224.16

Finding the Fourth Proportional to 78,034.26, 107,687.31 and 42,224.16

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Solution

The fourth proportional to 78,034.26, 107,687.31 and 42,224.16 is: 58,269.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,034.26 : 107,687.31 = 42,224.16 : x
  2. Step 2: Convert to fraction form
    78,034.26/107,687.31 = 42,224.16/x
  3. Step 3: Cross multiply
    78,034.26x = 107,687.31 × 42,224.16
  4. Step 4: Simplify right side
    78,034.26x = 4,547,006,207.41
  5. Step 5: Solve for x
    x = 4,547,006,207.41/78,034.26
  6. Step 6: Final answer
    x = 58,269.36

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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.