Home / 42,459.60-63,689.32-11,294.88

Finding the Fourth Proportional to 42,459.60, 63,689.32 and 11,294.88

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Solution

The fourth proportional to 42,459.60, 63,689.32 and 11,294.88 is: 16,942.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,459.60 : 63,689.32 = 11,294.88 : x
  2. Step 2: Convert to fraction form
    42,459.60/63,689.32 = 11,294.88/x
  3. Step 3: Cross multiply
    42,459.60x = 63,689.32 × 11,294.88
  4. Step 4: Simplify right side
    42,459.60x = 719,363,226.68
  5. Step 5: Solve for x
    x = 719,363,226.68/42,459.60
  6. Step 6: Final answer
    x = 16,942.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.