Home / 78,629.24-117,966.87-25,320.04

Finding the Fourth Proportional to 78,629.24, 117,966.87 and 25,320.04

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Solution

The fourth proportional to 78,629.24, 117,966.87 and 25,320.04 is: 37,987.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,629.24 : 117,966.87 = 25,320.04 : x
  2. Step 2: Convert to fraction form
    78,629.24/117,966.87 = 25,320.04/x
  3. Step 3: Cross multiply
    78,629.24x = 117,966.87 × 25,320.04
  4. Step 4: Simplify right side
    78,629.24x = 2,986,925,572.16
  5. Step 5: Solve for x
    x = 2,986,925,572.16/78,629.24
  6. Step 6: Final answer
    x = 37,987.46

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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.