Home / 90,276.60-135,331.97-31,098.20

Finding the Fourth Proportional to 90,276.60, 135,331.97 and 31,098.20

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Solution

The fourth proportional to 90,276.60, 135,331.97 and 31,098.20 is: 46,618.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,276.60 : 135,331.97 = 31,098.20 : x
  2. Step 2: Convert to fraction form
    90,276.60/135,331.97 = 31,098.20/x
  3. Step 3: Cross multiply
    90,276.60x = 135,331.97 × 31,098.20
  4. Step 4: Simplify right side
    90,276.60x = 4,208,581,085.53
  5. Step 5: Solve for x
    x = 4,208,581,085.53/90,276.60
  6. Step 6: Final answer
    x = 46,618.74

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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.