Home / 90,510.28-135,588.80-59,250.76

Finding the Fourth Proportional to 90,510.28, 135,588.80 and 59,250.76

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Solution

The fourth proportional to 90,510.28, 135,588.80 and 59,250.76 is: 88,760.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,510.28 : 135,588.80 = 59,250.76 : x
  2. Step 2: Convert to fraction form
    90,510.28/135,588.80 = 59,250.76/x
  3. Step 3: Cross multiply
    90,510.28x = 135,588.80 × 59,250.76
  4. Step 4: Simplify right side
    90,510.28x = 8,033,739,447.49
  5. Step 5: Solve for x
    x = 8,033,739,447.49/90,510.28
  6. Step 6: Final answer
    x = 88,760.52

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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.