Home / 82,719.78-124,019.18-26,527.90

Finding the Fourth Proportional to 82,719.78, 124,019.18 and 26,527.90

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Solution

The fourth proportional to 82,719.78, 124,019.18 and 26,527.90 is: 39,772.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,719.78 : 124,019.18 = 26,527.90 : x
  2. Step 2: Convert to fraction form
    82,719.78/124,019.18 = 26,527.90/x
  3. Step 3: Cross multiply
    82,719.78x = 124,019.18 × 26,527.90
  4. Step 4: Simplify right side
    82,719.78x = 3,289,968,272.48
  5. Step 5: Solve for x
    x = 3,289,968,272.48/82,719.78
  6. Step 6: Final answer
    x = 39,772.45

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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.