Home / 91,423.27-137,189.40-40,818.36

Finding the Fourth Proportional to 91,423.27, 137,189.40 and 40,818.36

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Solution

The fourth proportional to 91,423.27, 137,189.40 and 40,818.36 is: 61,251.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,423.27 : 137,189.40 = 40,818.36 : x
  2. Step 2: Convert to fraction form
    91,423.27/137,189.40 = 40,818.36/x
  3. Step 3: Cross multiply
    91,423.27x = 137,189.40 × 40,818.36
  4. Step 4: Simplify right side
    91,423.27x = 5,599,846,678.78
  5. Step 5: Solve for x
    x = 5,599,846,678.78/91,423.27
  6. Step 6: Final answer
    x = 61,251.88

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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.