Home / 85,470.06-117,949.65-47,229.45

Finding the Fourth Proportional to 85,470.06, 117,949.65 and 47,229.45

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Solution

The fourth proportional to 85,470.06, 117,949.65 and 47,229.45 is: 65,177.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,470.06 : 117,949.65 = 47,229.45 : x
  2. Step 2: Convert to fraction form
    85,470.06/117,949.65 = 47,229.45/x
  3. Step 3: Cross multiply
    85,470.06x = 117,949.65 × 47,229.45
  4. Step 4: Simplify right side
    85,470.06x = 5,570,697,097.19
  5. Step 5: Solve for x
    x = 5,570,697,097.19/85,470.06
  6. Step 6: Final answer
    x = 65,177.18

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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.