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Finding the Fourth Proportional to 88,129.90, 132,000.45 and 53,008.30

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Solution

The fourth proportional to 88,129.90, 132,000.45 and 53,008.30 is: 79,395.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,129.90 : 132,000.45 = 53,008.30 : x
  2. Step 2: Convert to fraction form
    88,129.90/132,000.45 = 53,008.30/x
  3. Step 3: Cross multiply
    88,129.90x = 132,000.45 × 53,008.30
  4. Step 4: Simplify right side
    88,129.90x = 6,997,119,453.74
  5. Step 5: Solve for x
    x = 6,997,119,453.74/88,129.90
  6. Step 6: Final answer
    x = 79,395.52

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1.5x scale

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.