Home / 99,328.56-137,073.92-54,006.90

Finding the Fourth Proportional to 99,328.56, 137,073.92 and 54,006.90

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Solution

The fourth proportional to 99,328.56, 137,073.92 and 54,006.90 is: 74,529.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,328.56 : 137,073.92 = 54,006.90 : x
  2. Step 2: Convert to fraction form
    99,328.56/137,073.92 = 54,006.90/x
  3. Step 3: Cross multiply
    99,328.56x = 137,073.92 × 54,006.90
  4. Step 4: Simplify right side
    99,328.56x = 7,402,937,490.05
  5. Step 5: Solve for x
    x = 7,402,937,490.05/99,328.56
  6. Step 6: Final answer
    x = 74,529.80

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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.