Home / 86,787.13-130,198.11-36,866.83

Finding the Fourth Proportional to 86,787.13, 130,198.11 and 36,866.83

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Solution

The fourth proportional to 86,787.13, 130,198.11 and 36,866.83 is: 55,307.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,787.13 : 130,198.11 = 36,866.83 : x
  2. Step 2: Convert to fraction form
    86,787.13/130,198.11 = 36,866.83/x
  3. Step 3: Cross multiply
    86,787.13x = 130,198.11 × 36,866.83
  4. Step 4: Simplify right side
    86,787.13x = 4,799,991,587.69
  5. Step 5: Solve for x
    x = 4,799,991,587.69/86,787.13
  6. Step 6: Final answer
    x = 55,307.64

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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.