Home / 82,720.66-124,020.51-26,528.79

Finding the Fourth Proportional to 82,720.66, 124,020.51 and 26,528.79

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Solution

The fourth proportional to 82,720.66, 124,020.51 and 26,528.79 is: 39,773.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,720.66 : 124,020.51 = 26,528.79 : x
  2. Step 2: Convert to fraction form
    82,720.66/124,020.51 = 26,528.79/x
  3. Step 3: Cross multiply
    82,720.66x = 124,020.51 × 26,528.79
  4. Step 4: Simplify right side
    82,720.66x = 3,290,114,065.48
  5. Step 5: Solve for x
    x = 3,290,114,065.48/82,720.66
  6. Step 6: Final answer
    x = 39,773.79

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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.