Home / 82,756.10-124,134.15-53,207.30

Finding the Fourth Proportional to 82,756.10, 124,134.15 and 53,207.30

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Solution

The fourth proportional to 82,756.10, 124,134.15 and 53,207.30 is: 79,810.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,756.10 : 124,134.15 = 53,207.30 : x
  2. Step 2: Convert to fraction form
    82,756.10/124,134.15 = 53,207.30/x
  3. Step 3: Cross multiply
    82,756.10x = 124,134.15 × 53,207.30
  4. Step 4: Simplify right side
    82,756.10x = 6,604,842,959.30
  5. Step 5: Solve for x
    x = 6,604,842,959.30/82,756.10
  6. Step 6: Final answer
    x = 79,810.95

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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.