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Finding the Fourth Proportional to 63,559, 87,711.19 and 34,879.15

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Solution

The fourth proportional to 63,559, 87,711.19 and 34,879.15 is: 48,133.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,559 : 87,711.19 = 34,879.15 : x
  2. Step 2: Convert to fraction form
    63,559/87,711.19 = 34,879.15/x
  3. Step 3: Cross multiply
    63,559x = 87,711.19 × 34,879.15
  4. Step 4: Simplify right side
    63,559x = 3,059,291,139.74
  5. Step 5: Solve for x
    x = 3,059,291,139.74/63,559
  6. Step 6: Final answer
    x = 48,133.09

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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.