Home / 86,720.20-130,080.30-24,390.70

Finding the Fourth Proportional to 86,720.20, 130,080.30 and 24,390.70

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Solution

The fourth proportional to 86,720.20, 130,080.30 and 24,390.70 is: 36,586.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,720.20 : 130,080.30 = 24,390.70 : x
  2. Step 2: Convert to fraction form
    86,720.20/130,080.30 = 24,390.70/x
  3. Step 3: Cross multiply
    86,720.20x = 130,080.30 × 24,390.70
  4. Step 4: Simplify right side
    86,720.20x = 3,172,749,573.21
  5. Step 5: Solve for x
    x = 3,172,749,573.21/86,720.20
  6. Step 6: Final answer
    x = 36,586.05

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1.5x scale

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.