Home / 71,909.16-99,188.33-47,709.60

Finding the Fourth Proportional to 71,909.16, 99,188.33 and 47,709.60

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Solution

The fourth proportional to 71,909.16, 99,188.33 and 47,709.60 is: 65,808.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,909.16 : 99,188.33 = 47,709.60 : x
  2. Step 2: Convert to fraction form
    71,909.16/99,188.33 = 47,709.60/x
  3. Step 3: Cross multiply
    71,909.16x = 99,188.33 × 47,709.60
  4. Step 4: Simplify right side
    71,909.16x = 4,732,235,310.42
  5. Step 5: Solve for x
    x = 4,732,235,310.42/71,909.16
  6. Step 6: Final answer
    x = 65,808.52

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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.