Home / 90,373.28-124,711.92-50,090.81

Finding the Fourth Proportional to 90,373.28, 124,711.92 and 50,090.81

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Solution

The fourth proportional to 90,373.28, 124,711.92 and 50,090.81 is: 69,123.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,373.28 : 124,711.92 = 50,090.81 : x
  2. Step 2: Convert to fraction form
    90,373.28/124,711.92 = 50,090.81/x
  3. Step 3: Cross multiply
    90,373.28x = 124,711.92 × 50,090.81
  4. Step 4: Simplify right side
    90,373.28x = 6,246,920,465.90
  5. Step 5: Solve for x
    x = 6,246,920,465.90/90,373.28
  6. Step 6: Final answer
    x = 69,123.54

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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.