Home / 90,267.28-135,422.56-27,937.76

Finding the Fourth Proportional to 90,267.28, 135,422.56 and 27,937.76

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Solution

The fourth proportional to 90,267.28, 135,422.56 and 27,937.76 is: 41,913.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,267.28 : 135,422.56 = 27,937.76 : x
  2. Step 2: Convert to fraction form
    90,267.28/135,422.56 = 27,937.76/x
  3. Step 3: Cross multiply
    90,267.28x = 135,422.56 × 27,937.76
  4. Step 4: Simplify right side
    90,267.28x = 3,783,402,979.87
  5. Step 5: Solve for x
    x = 3,783,402,979.87/90,267.28
  6. Step 6: Final answer
    x = 41,913.34

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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.