Home / 86,720.45-130,080.69-24,390.95

Finding the Fourth Proportional to 86,720.45, 130,080.69 and 24,390.95

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Solution

The fourth proportional to 86,720.45, 130,080.69 and 24,390.95 is: 36,586.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,720.45 : 130,080.69 = 24,390.95 : x
  2. Step 2: Convert to fraction form
    86,720.45/130,080.69 = 24,390.95/x
  3. Step 3: Cross multiply
    86,720.45x = 130,080.69 × 24,390.95
  4. Step 4: Simplify right side
    86,720.45x = 3,172,791,605.76
  5. Step 5: Solve for x
    x = 3,172,791,605.76/86,720.45
  6. Step 6: Final answer
    x = 36,586.43

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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.