Home / 91,426.39-137,139.59-38,798.97

Finding the Fourth Proportional to 91,426.39, 137,139.59 and 38,798.97

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Solution

The fourth proportional to 91,426.39, 137,139.59 and 38,798.97 is: 58,198.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,426.39 : 137,139.59 = 38,798.97 : x
  2. Step 2: Convert to fraction form
    91,426.39/137,139.59 = 38,798.97/x
  3. Step 3: Cross multiply
    91,426.39x = 137,139.59 × 38,798.97
  4. Step 4: Simplify right side
    91,426.39x = 5,320,874,838.22
  5. Step 5: Solve for x
    x = 5,320,874,838.22/91,426.39
  6. Step 6: Final answer
    x = 58,198.46

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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.