Home / 90,864.12-136,251.02-57,558.95

Finding the Fourth Proportional to 90,864.12, 136,251.02 and 57,558.95

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Solution

The fourth proportional to 90,864.12, 136,251.02 and 57,558.95 is: 86,309.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,864.12 : 136,251.02 = 57,558.95 : x
  2. Step 2: Convert to fraction form
    90,864.12/136,251.02 = 57,558.95/x
  3. Step 3: Cross multiply
    90,864.12x = 136,251.02 × 57,558.95
  4. Step 4: Simplify right side
    90,864.12x = 7,842,465,110.27
  5. Step 5: Solve for x
    x = 7,842,465,110.27/90,864.12
  6. Step 6: Final answer
    x = 86,309.81

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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.