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Finding the Fourth Proportional to 88,712.30, 133,080.60 and 29,541.80

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Solution

The fourth proportional to 88,712.30, 133,080.60 and 29,541.80 is: 44,316.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,712.30 : 133,080.60 = 29,541.80 : x
  2. Step 2: Convert to fraction form
    88,712.30/133,080.60 = 29,541.80/x
  3. Step 3: Cross multiply
    88,712.30x = 133,080.60 × 29,541.80
  4. Step 4: Simplify right side
    88,712.30x = 3,931,440,469.08
  5. Step 5: Solve for x
    x = 3,931,440,469.08/88,712.30
  6. Step 6: Final answer
    x = 44,316.75

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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.