Home / 82,812.90-124,219.35-43,382.10

Finding the Fourth Proportional to 82,812.90, 124,219.35 and 43,382.10

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Solution

The fourth proportional to 82,812.90, 124,219.35 and 43,382.10 is: 65,073.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,812.90 : 124,219.35 = 43,382.10 : x
  2. Step 2: Convert to fraction form
    82,812.90/124,219.35 = 43,382.10/x
  3. Step 3: Cross multiply
    82,812.90x = 124,219.35 × 43,382.10
  4. Step 4: Simplify right side
    82,812.90x = 5,388,896,263.64
  5. Step 5: Solve for x
    x = 5,388,896,263.64/82,812.90
  6. Step 6: Final answer
    x = 65,073.15

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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.