Home / 42,148.18-63,221.64-12,566.14

Finding the Fourth Proportional to 42,148.18, 63,221.64 and 12,566.14

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Solution

The fourth proportional to 42,148.18, 63,221.64 and 12,566.14 is: 18,849.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,148.18 : 63,221.64 = 12,566.14 : x
  2. Step 2: Convert to fraction form
    42,148.18/63,221.64 = 12,566.14/x
  3. Step 3: Cross multiply
    42,148.18x = 63,221.64 × 12,566.14
  4. Step 4: Simplify right side
    42,148.18x = 794,451,979.27
  5. Step 5: Solve for x
    x = 794,451,979.27/42,148.18
  6. Step 6: Final answer
    x = 18,849.02

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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.