Home / 68,018.68-93,851.20-39,711.52

Finding the Fourth Proportional to 68,018.68, 93,851.20 and 39,711.52

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Solution

The fourth proportional to 68,018.68, 93,851.20 and 39,711.52 is: 54,793.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,018.68 : 93,851.20 = 39,711.52 : x
  2. Step 2: Convert to fraction form
    68,018.68/93,851.20 = 39,711.52/x
  3. Step 3: Cross multiply
    68,018.68x = 93,851.20 × 39,711.52
  4. Step 4: Simplify right side
    68,018.68x = 3,726,973,805.82
  5. Step 5: Solve for x
    x = 3,726,973,805.82/68,018.68
  6. Step 6: Final answer
    x = 54,793.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.