Home / 86,757.12-130,095.36-42,385.92

Finding the Fourth Proportional to 86,757.12, 130,095.36 and 42,385.92

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Solution

The fourth proportional to 86,757.12, 130,095.36 and 42,385.92 is: 63,559.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,757.12 : 130,095.36 = 42,385.92 : x
  2. Step 2: Convert to fraction form
    86,757.12/130,095.36 = 42,385.92/x
  3. Step 3: Cross multiply
    86,757.12x = 130,095.36 × 42,385.92
  4. Step 4: Simplify right side
    86,757.12x = 5,514,211,521.33
  5. Step 5: Solve for x
    x = 5,514,211,521.33/86,757.12
  6. Step 6: Final answer
    x = 63,559.18

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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.