Home / 74,861.12-103,302.14-42,587.15

Finding the Fourth Proportional to 74,861.12, 103,302.14 and 42,587.15

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Solution

The fourth proportional to 74,861.12, 103,302.14 and 42,587.15 is: 58,766.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,861.12 : 103,302.14 = 42,587.15 : x
  2. Step 2: Convert to fraction form
    74,861.12/103,302.14 = 42,587.15/x
  3. Step 3: Cross multiply
    74,861.12x = 103,302.14 × 42,587.15
  4. Step 4: Simplify right side
    74,861.12x = 4,399,343,731.50
  5. Step 5: Solve for x
    x = 4,399,343,731.50/74,861.12
  6. Step 6: Final answer
    x = 58,766.74

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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.