Home / 88,209.76-121,728.96-47,923.24

Finding the Fourth Proportional to 88,209.76, 121,728.96 and 47,923.24

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Solution

The fourth proportional to 88,209.76, 121,728.96 and 47,923.24 is: 66,133.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,209.76 : 121,728.96 = 47,923.24 : x
  2. Step 2: Convert to fraction form
    88,209.76/121,728.96 = 47,923.24/x
  3. Step 3: Cross multiply
    88,209.76x = 121,728.96 × 47,923.24
  4. Step 4: Simplify right side
    88,209.76x = 5,833,646,165.03
  5. Step 5: Solve for x
    x = 5,833,646,165.03/88,209.76
  6. Step 6: Final answer
    x = 66,133.79

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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.