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Finding the Fourth Proportional to 88,385.80, 132,578.70 and 21,825.40

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Solution

The fourth proportional to 88,385.80, 132,578.70 and 21,825.40 is: 32,738.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,385.80 : 132,578.70 = 21,825.40 : x
  2. Step 2: Convert to fraction form
    88,385.80/132,578.70 = 21,825.40/x
  3. Step 3: Cross multiply
    88,385.80x = 132,578.70 × 21,825.40
  4. Step 4: Simplify right side
    88,385.80x = 2,893,583,158.98
  5. Step 5: Solve for x
    x = 2,893,583,158.98/88,385.80
  6. Step 6: Final answer
    x = 32,738.10

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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.