Home / 91,182.40-136,788-38,592.16

Finding the Fourth Proportional to 91,182.40, 136,788 and 38,592.16

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Solution

The fourth proportional to 91,182.40, 136,788 and 38,592.16 is: 57,894.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,182.40 : 136,788 = 38,592.16 : x
  2. Step 2: Convert to fraction form
    91,182.40/136,788 = 38,592.16/x
  3. Step 3: Cross multiply
    91,182.40x = 136,788 × 38,592.16
  4. Step 4: Simplify right side
    91,182.40x = 5,278,944,382.08
  5. Step 5: Solve for x
    x = 5,278,944,382.08/91,182.40
  6. Step 6: Final answer
    x = 57,894.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.