Home / 99,532.80-137,350.08-61,806.24

Finding the Fourth Proportional to 99,532.80, 137,350.08 and 61,806.24

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Solution

The fourth proportional to 99,532.80, 137,350.08 and 61,806.24 is: 85,289.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,532.80 : 137,350.08 = 61,806.24 : x
  2. Step 2: Convert to fraction form
    99,532.80/137,350.08 = 61,806.24/x
  3. Step 3: Cross multiply
    99,532.80x = 137,350.08 × 61,806.24
  4. Step 4: Simplify right side
    99,532.80x = 8,489,092,008.50
  5. Step 5: Solve for x
    x = 8,489,092,008.50/99,532.80
  6. Step 6: Final answer
    x = 85,289.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.