Home / 76,871.80-115,307.70-32,487.04

Finding the Fourth Proportional to 76,871.80, 115,307.70 and 32,487.04

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Solution

The fourth proportional to 76,871.80, 115,307.70 and 32,487.04 is: 48,730.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,871.80 : 115,307.70 = 32,487.04 : x
  2. Step 2: Convert to fraction form
    76,871.80/115,307.70 = 32,487.04/x
  3. Step 3: Cross multiply
    76,871.80x = 115,307.70 × 32,487.04
  4. Step 4: Simplify right side
    76,871.80x = 3,746,005,862.21
  5. Step 5: Solve for x
    x = 3,746,005,862.21/76,871.80
  6. Step 6: Final answer
    x = 48,730.56

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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.