Home / 91,000.13-125,565.39-52,752.20

Finding the Fourth Proportional to 91,000.13, 125,565.39 and 52,752.20

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Solution

The fourth proportional to 91,000.13, 125,565.39 and 52,752.20 is: 72,789.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,000.13 : 125,565.39 = 52,752.20 : x
  2. Step 2: Convert to fraction form
    91,000.13/125,565.39 = 52,752.20/x
  3. Step 3: Cross multiply
    91,000.13x = 125,565.39 × 52,752.20
  4. Step 4: Simplify right side
    91,000.13x = 6,623,849,938.53
  5. Step 5: Solve for x
    x = 6,623,849,938.53/91,000.13
  6. Step 6: Final answer
    x = 72,789.46

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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.