Home / 88,273.27-121,817.69-47,987.38

Finding the Fourth Proportional to 88,273.27, 121,817.69 and 47,987.38

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Solution

The fourth proportional to 88,273.27, 121,817.69 and 47,987.38 is: 66,222.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,273.27 : 121,817.69 = 47,987.38 : x
  2. Step 2: Convert to fraction form
    88,273.27/121,817.69 = 47,987.38/x
  3. Step 3: Cross multiply
    88,273.27x = 121,817.69 × 47,987.38
  4. Step 4: Simplify right side
    88,273.27x = 5,845,711,780.75
  5. Step 5: Solve for x
    x = 5,845,711,780.75/88,273.27
  6. Step 6: Final answer
    x = 66,222.90

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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.