Home / 99,344.34-137,092.50-56,331.72

Finding the Fourth Proportional to 99,344.34, 137,092.50 and 56,331.72

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Solution

The fourth proportional to 99,344.34, 137,092.50 and 56,331.72 is: 77,736.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,344.34 : 137,092.50 = 56,331.72 : x
  2. Step 2: Convert to fraction form
    99,344.34/137,092.50 = 56,331.72/x
  3. Step 3: Cross multiply
    99,344.34x = 137,092.50 × 56,331.72
  4. Step 4: Simplify right side
    99,344.34x = 7,722,656,324.10
  5. Step 5: Solve for x
    x = 7,722,656,324.10/99,344.34
  6. Step 6: Final answer
    x = 77,736.25

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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.