Home / 74,224.14-102,418.17-42,386.30

Finding the Fourth Proportional to 74,224.14, 102,418.17 and 42,386.30

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Solution

The fourth proportional to 74,224.14, 102,418.17 and 42,386.30 is: 58,486.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,224.14 : 102,418.17 = 42,386.30 : x
  2. Step 2: Convert to fraction form
    74,224.14/102,418.17 = 42,386.30/x
  3. Step 3: Cross multiply
    74,224.14x = 102,418.17 × 42,386.30
  4. Step 4: Simplify right side
    74,224.14x = 4,341,127,279.07
  5. Step 5: Solve for x
    x = 4,341,127,279.07/74,224.14
  6. Step 6: Final answer
    x = 58,486.73

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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.