Home / 88,043.66-121,426.35-57,805.82

Finding the Fourth Proportional to 88,043.66, 121,426.35 and 57,805.82

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Solution

The fourth proportional to 88,043.66, 121,426.35 and 57,805.82 is: 79,723.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,043.66 : 121,426.35 = 57,805.82 : x
  2. Step 2: Convert to fraction form
    88,043.66/121,426.35 = 57,805.82/x
  3. Step 3: Cross multiply
    88,043.66x = 121,426.35 × 57,805.82
  4. Step 4: Simplify right side
    88,043.66x = 7,019,149,731.36
  5. Step 5: Solve for x
    x = 7,019,149,731.36/88,043.66
  6. Step 6: Final answer
    x = 79,723.51

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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.