Home / 87,541.40-131,465.70-84,776.60

Finding the Fourth Proportional to 87,541.40, 131,465.70 and 84,776.60

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Solution

The fourth proportional to 87,541.40, 131,465.70 and 84,776.60 is: 127,313.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,541.40 : 131,465.70 = 84,776.60 : x
  2. Step 2: Convert to fraction form
    87,541.40/131,465.70 = 84,776.60/x
  3. Step 3: Cross multiply
    87,541.40x = 131,465.70 × 84,776.60
  4. Step 4: Simplify right side
    87,541.40x = 11,145,215,062.62
  5. Step 5: Solve for x
    x = 11,145,215,062.62/87,541.40
  6. Step 6: Final answer
    x = 127,313.65

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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.