Home / 88,231.95-121,760-47,945.62

Finding the Fourth Proportional to 88,231.95, 121,760 and 47,945.62

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Solution

The fourth proportional to 88,231.95, 121,760 and 47,945.62 is: 66,164.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,231.95 : 121,760 = 47,945.62 : x
  2. Step 2: Convert to fraction form
    88,231.95/121,760 = 47,945.62/x
  3. Step 3: Cross multiply
    88,231.95x = 121,760 × 47,945.62
  4. Step 4: Simplify right side
    88,231.95x = 5,837,858,386.80
  5. Step 5: Solve for x
    x = 5,837,858,386.80/88,231.95
  6. Step 6: Final answer
    x = 66,164.90

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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.