Home / 85,195.64-117,569.40-47,470.16

Finding the Fourth Proportional to 85,195.64, 117,569.40 and 47,470.16

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Solution

The fourth proportional to 85,195.64, 117,569.40 and 47,470.16 is: 65,508.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,195.64 : 117,569.40 = 47,470.16 : x
  2. Step 2: Convert to fraction form
    85,195.64/117,569.40 = 47,470.16/x
  3. Step 3: Cross multiply
    85,195.64x = 117,569.40 × 47,470.16
  4. Step 4: Simplify right side
    85,195.64x = 5,581,038,229.10
  5. Step 5: Solve for x
    x = 5,581,038,229.10/85,195.64
  6. Step 6: Final answer
    x = 65,508.50

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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.