Home / 87,142,759.20-130,714,138.80-41,793,127.20

Finding the Fourth Proportional to 87,142,759.20, 130,714,138.80 and 41,793,127.20

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Solution

The fourth proportional to 87,142,759.20, 130,714,138.80 and 41,793,127.20 is: 62,689,690.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,142,759.20 : 130,714,138.80 = 41,793,127.20 : x
  2. Step 2: Convert to fraction form
    87,142,759.20/130,714,138.80 = 41,793,127.20/x
  3. Step 3: Cross multiply
    87,142,759.20x = 130,714,138.80 × 41,793,127.20
  4. Step 4: Simplify right side
    87,142,759.20x = 5,462,952,629,706,856
  5. Step 5: Solve for x
    x = 5,462,952,629,706,856/87,142,759.20
  6. Step 6: Final answer
    x = 62,689,690.80

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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.