Home / 74,257.20-102,465.50-42,428.16

Finding the Fourth Proportional to 74,257.20, 102,465.50 and 42,428.16

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Solution

The fourth proportional to 74,257.20, 102,465.50 and 42,428.16 is: 58,545.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,257.20 : 102,465.50 = 42,428.16 : x
  2. Step 2: Convert to fraction form
    74,257.20/102,465.50 = 42,428.16/x
  3. Step 3: Cross multiply
    74,257.20x = 102,465.50 × 42,428.16
  4. Step 4: Simplify right side
    74,257.20x = 4,347,422,416.34
  5. Step 5: Solve for x
    x = 4,347,422,416.34/74,257.20
  6. Step 6: Final answer
    x = 58,545.47

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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.