Home / 90,186.09-124,456.95-49,901.55

Finding the Fourth Proportional to 90,186.09, 124,456.95 and 49,901.55

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Solution

The fourth proportional to 90,186.09, 124,456.95 and 49,901.55 is: 68,864.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,186.09 : 124,456.95 = 49,901.55 : x
  2. Step 2: Convert to fraction form
    90,186.09/124,456.95 = 49,901.55/x
  3. Step 3: Cross multiply
    90,186.09x = 124,456.95 × 49,901.55
  4. Step 4: Simplify right side
    90,186.09x = 6,210,594,713.27
  5. Step 5: Solve for x
    x = 6,210,594,713.27/90,186.09
  6. Step 6: Final answer
    x = 68,864.22

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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.