Home / 88,287.12-121,838.78-53,833.88

Finding the Fourth Proportional to 88,287.12, 121,838.78 and 53,833.88

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Solution

The fourth proportional to 88,287.12, 121,838.78 and 53,833.88 is: 74,292.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,287.12 : 121,838.78 = 53,833.88 : x
  2. Step 2: Convert to fraction form
    88,287.12/121,838.78 = 53,833.88/x
  3. Step 3: Cross multiply
    88,287.12x = 121,838.78 × 53,833.88
  4. Step 4: Simplify right side
    88,287.12x = 6,559,054,261.87
  5. Step 5: Solve for x
    x = 6,559,054,261.87/88,287.12
  6. Step 6: Final answer
    x = 74,292.31

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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.