Home / 91,282.68-125,972.28-57,287.52

Finding the Fourth Proportional to 91,282.68, 125,972.28 and 57,287.52

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Solution

The fourth proportional to 91,282.68, 125,972.28 and 57,287.52 is: 79,058.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,282.68 : 125,972.28 = 57,287.52 : x
  2. Step 2: Convert to fraction form
    91,282.68/125,972.28 = 57,287.52/x
  3. Step 3: Cross multiply
    91,282.68x = 125,972.28 × 57,287.52
  4. Step 4: Simplify right side
    91,282.68x = 7,216,639,509.95
  5. Step 5: Solve for x
    x = 7,216,639,509.95/91,282.68
  6. Step 6: Final answer
    x = 79,058.15

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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.