Home / 85,868.60-118,505.52-47,631.92

Finding the Fourth Proportional to 85,868.60, 118,505.52 and 47,631.92

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Solution

The fourth proportional to 85,868.60, 118,505.52 and 47,631.92 is: 65,735.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,868.60 : 118,505.52 = 47,631.92 : x
  2. Step 2: Convert to fraction form
    85,868.60/118,505.52 = 47,631.92/x
  3. Step 3: Cross multiply
    85,868.60x = 118,505.52 × 47,631.92
  4. Step 4: Simplify right side
    85,868.60x = 5,644,645,448.20
  5. Step 5: Solve for x
    x = 5,644,645,448.20/85,868.60
  6. Step 6: Final answer
    x = 65,735.85

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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.