Home / 74,142.59-102,324.13-42,316.29

Finding the Fourth Proportional to 74,142.59, 102,324.13 and 42,316.29

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Solution

The fourth proportional to 74,142.59, 102,324.13 and 42,316.29 is: 58,400.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,142.59 : 102,324.13 = 42,316.29 : x
  2. Step 2: Convert to fraction form
    74,142.59/102,324.13 = 42,316.29/x
  3. Step 3: Cross multiply
    74,142.59x = 102,324.13 × 42,316.29
  4. Step 4: Simplify right side
    74,142.59x = 4,329,977,453.29
  5. Step 5: Solve for x
    x = 4,329,977,453.29/74,142.59
  6. Step 6: Final answer
    x = 58,400.68

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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.