Home / 99,832.80-137,772.10-54,513.66

Finding the Fourth Proportional to 99,832.80, 137,772.10 and 54,513.66

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Solution

The fourth proportional to 99,832.80, 137,772.10 and 54,513.66 is: 75,230.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,832.80 : 137,772.10 = 54,513.66 : x
  2. Step 2: Convert to fraction form
    99,832.80/137,772.10 = 54,513.66/x
  3. Step 3: Cross multiply
    99,832.80x = 137,772.10 × 54,513.66
  4. Step 4: Simplify right side
    99,832.80x = 7,510,461,416.89
  5. Step 5: Solve for x
    x = 7,510,461,416.89/99,832.80
  6. Step 6: Final answer
    x = 75,230.40

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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.