Home / 83,781.73-115,624.02-47,970.82

Finding the Fourth Proportional to 83,781.73, 115,624.02 and 47,970.82

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Solution

The fourth proportional to 83,781.73, 115,624.02 and 47,970.82 is: 66,202.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,781.73 : 115,624.02 = 47,970.82 : x
  2. Step 2: Convert to fraction form
    83,781.73/115,624.02 = 47,970.82/x
  3. Step 3: Cross multiply
    83,781.73x = 115,624.02 × 47,970.82
  4. Step 4: Simplify right side
    83,781.73x = 5,546,579,051.10
  5. Step 5: Solve for x
    x = 5,546,579,051.10/83,781.73
  6. Step 6: Final answer
    x = 66,202.73

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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.