Home / 89,220.64-123,125.52-55,706.08

Finding the Fourth Proportional to 89,220.64, 123,125.52 and 55,706.08

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Solution

The fourth proportional to 89,220.64, 123,125.52 and 55,706.08 is: 76,875.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,220.64 : 123,125.52 = 55,706.08 : x
  2. Step 2: Convert to fraction form
    89,220.64/123,125.52 = 55,706.08/x
  3. Step 3: Cross multiply
    89,220.64x = 123,125.52 × 55,706.08
  4. Step 4: Simplify right side
    89,220.64x = 6,858,840,067.16
  5. Step 5: Solve for x
    x = 6,858,840,067.16/89,220.64
  6. Step 6: Final answer
    x = 76,875.04

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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.