Home / 74,400.28-102,602.10-48,861.64

Finding the Fourth Proportional to 74,400.28, 102,602.10 and 48,861.64

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Solution

The fourth proportional to 74,400.28, 102,602.10 and 48,861.64 is: 67,382.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,400.28 : 102,602.10 = 48,861.64 : x
  2. Step 2: Convert to fraction form
    74,400.28/102,602.10 = 48,861.64/x
  3. Step 3: Cross multiply
    74,400.28x = 102,602.10 × 48,861.64
  4. Step 4: Simplify right side
    74,400.28x = 5,013,306,873.44
  5. Step 5: Solve for x
    x = 5,013,306,873.44/74,400.28
  6. Step 6: Final answer
    x = 67,382.90

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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.