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Finding the Fourth Proportional to 85,713.72, 118,279.01 and 47,470.52

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Solution

The fourth proportional to 85,713.72, 118,279.01 and 47,470.52 is: 65,506.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,713.72 : 118,279.01 = 47,470.52 : x
  2. Step 2: Convert to fraction form
    85,713.72/118,279.01 = 47,470.52/x
  3. Step 3: Cross multiply
    85,713.72x = 118,279.01 × 47,470.52
  4. Step 4: Simplify right side
    85,713.72x = 5,614,765,281.04
  5. Step 5: Solve for x
    x = 5,614,765,281.04/85,713.72
  6. Step 6: Final answer
    x = 65,506.03

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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.