Home / 78,948.02-108,934.53-47,115.02

Finding the Fourth Proportional to 78,948.02, 108,934.53 and 47,115.02

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Solution

The fourth proportional to 78,948.02, 108,934.53 and 47,115.02 is: 65,010.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,948.02 : 108,934.53 = 47,115.02 : x
  2. Step 2: Convert to fraction form
    78,948.02/108,934.53 = 47,115.02/x
  3. Step 3: Cross multiply
    78,948.02x = 108,934.53 × 47,115.02
  4. Step 4: Simplify right side
    78,948.02x = 5,132,452,559.64
  5. Step 5: Solve for x
    x = 5,132,452,559.64/78,948.02
  6. Step 6: Final answer
    x = 65,010.53

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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.