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Finding the Fourth Proportional to 85,951.20, 118,606.71 and 47,707.74

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Solution

The fourth proportional to 85,951.20, 118,606.71 and 47,707.74 is: 65,833.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,951.20 : 118,606.71 = 47,707.74 : x
  2. Step 2: Convert to fraction form
    85,951.20/118,606.71 = 47,707.74/x
  3. Step 3: Cross multiply
    85,951.20x = 118,606.71 × 47,707.74
  4. Step 4: Simplify right side
    85,951.20x = 5,658,458,082.94
  5. Step 5: Solve for x
    x = 5,658,458,082.94/85,951.20
  6. Step 6: Final answer
    x = 65,833.38

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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.