Home / 85,630.16-118,174.20-47,897.84

Finding the Fourth Proportional to 85,630.16, 118,174.20 and 47,897.84

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Solution

The fourth proportional to 85,630.16, 118,174.20 and 47,897.84 is: 66,101.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,630.16 : 118,174.20 = 47,897.84 : x
  2. Step 2: Convert to fraction form
    85,630.16/118,174.20 = 47,897.84/x
  3. Step 3: Cross multiply
    85,630.16x = 118,174.20 × 47,897.84
  4. Step 4: Simplify right side
    85,630.16x = 5,660,288,923.73
  5. Step 5: Solve for x
    x = 5,660,288,923.73/85,630.16
  6. Step 6: Final answer
    x = 66,101.58

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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.