Home / 87,205.20-130,807.80-34,587.60

Finding the Fourth Proportional to 87,205.20, 130,807.80 and 34,587.60

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Solution

The fourth proportional to 87,205.20, 130,807.80 and 34,587.60 is: 51,881.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,205.20 : 130,807.80 = 34,587.60 : x
  2. Step 2: Convert to fraction form
    87,205.20/130,807.80 = 34,587.60/x
  3. Step 3: Cross multiply
    87,205.20x = 130,807.80 × 34,587.60
  4. Step 4: Simplify right side
    87,205.20x = 4,524,327,863.28
  5. Step 5: Solve for x
    x = 4,524,327,863.28/87,205.20
  6. Step 6: Final answer
    x = 51,881.40

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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.