Home / 90,417.20-135,599.88-31,250.48

Finding the Fourth Proportional to 90,417.20, 135,599.88 and 31,250.48

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Solution

The fourth proportional to 90,417.20, 135,599.88 and 31,250.48 is: 46,866.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,417.20 : 135,599.88 = 31,250.48 : x
  2. Step 2: Convert to fraction form
    90,417.20/135,599.88 = 31,250.48/x
  3. Step 3: Cross multiply
    90,417.20x = 135,599.88 × 31,250.48
  4. Step 4: Simplify right side
    90,417.20x = 4,237,561,337.94
  5. Step 5: Solve for x
    x = 4,237,561,337.94/90,417.20
  6. Step 6: Final answer
    x = 46,866.76

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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.