Home / 87,205.20-130,548.60-57,656.40

Finding the Fourth Proportional to 87,205.20, 130,548.60 and 57,656.40

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Solution

The fourth proportional to 87,205.20, 130,548.60 and 57,656.40 is: 86,313.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,205.20 : 130,548.60 = 57,656.40 : x
  2. Step 2: Convert to fraction form
    87,205.20/130,548.60 = 57,656.40/x
  3. Step 3: Cross multiply
    87,205.20x = 130,548.60 × 57,656.40
  4. Step 4: Simplify right side
    87,205.20x = 7,526,962,301.04
  5. Step 5: Solve for x
    x = 7,526,962,301.04/87,205.20
  6. Step 6: Final answer
    x = 86,313.23

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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.