Home / 88,210.20-121,729.60-47,923.64

Finding the Fourth Proportional to 88,210.20, 121,729.60 and 47,923.64

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Solution

The fourth proportional to 88,210.20, 121,729.60 and 47,923.64 is: 66,134.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,210.20 : 121,729.60 = 47,923.64 : x
  2. Step 2: Convert to fraction form
    88,210.20/121,729.60 = 47,923.64/x
  3. Step 3: Cross multiply
    88,210.20x = 121,729.60 × 47,923.64
  4. Step 4: Simplify right side
    88,210.20x = 5,833,725,527.74
  5. Step 5: Solve for x
    x = 5,833,725,527.74/88,210.20
  6. Step 6: Final answer
    x = 66,134.36

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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.