Home / 87,419.01-131,043.40-55,730.19

Finding the Fourth Proportional to 87,419.01, 131,043.40 and 55,730.19

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Solution

The fourth proportional to 87,419.01, 131,043.40 and 55,730.19 is: 83,541.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,419.01 : 131,043.40 = 55,730.19 : x
  2. Step 2: Convert to fraction form
    87,419.01/131,043.40 = 55,730.19/x
  3. Step 3: Cross multiply
    87,419.01x = 131,043.40 × 55,730.19
  4. Step 4: Simplify right side
    87,419.01x = 7,303,073,580.25
  5. Step 5: Solve for x
    x = 7,303,073,580.25/87,419.01
  6. Step 6: Final answer
    x = 83,541.02

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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.