Home / 82,720.10-124,080.15-32,812.10

Finding the Fourth Proportional to 82,720.10, 124,080.15 and 32,812.10

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Solution

The fourth proportional to 82,720.10, 124,080.15 and 32,812.10 is: 49,218.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,720.10 : 124,080.15 = 32,812.10 : x
  2. Step 2: Convert to fraction form
    82,720.10/124,080.15 = 32,812.10/x
  3. Step 3: Cross multiply
    82,720.10x = 124,080.15 × 32,812.10
  4. Step 4: Simplify right side
    82,720.10x = 4,071,330,289.82
  5. Step 5: Solve for x
    x = 4,071,330,289.82/82,720.10
  6. Step 6: Final answer
    x = 49,218.15

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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.