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Finding the Fourth Proportional to 88,312, 132,435.60 and 29,130.16

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Solution

The fourth proportional to 88,312, 132,435.60 and 29,130.16 is: 43,684.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,312 : 132,435.60 = 29,130.16 : x
  2. Step 2: Convert to fraction form
    88,312/132,435.60 = 29,130.16/x
  3. Step 3: Cross multiply
    88,312x = 132,435.60 × 29,130.16
  4. Step 4: Simplify right side
    88,312x = 3,857,870,217.70
  5. Step 5: Solve for x
    x = 3,857,870,217.70/88,312
  6. Step 6: Final answer
    x = 43,684.55

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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.