Home / 87,932.09-121,348.55-53,959.35

Finding the Fourth Proportional to 87,932.09, 121,348.55 and 53,959.35

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Solution

The fourth proportional to 87,932.09, 121,348.55 and 53,959.35 is: 74,465.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,932.09 : 121,348.55 = 53,959.35 : x
  2. Step 2: Convert to fraction form
    87,932.09/121,348.55 = 53,959.35/x
  3. Step 3: Cross multiply
    87,932.09x = 121,348.55 × 53,959.35
  4. Step 4: Simplify right side
    87,932.09x = 6,547,888,611.65
  5. Step 5: Solve for x
    x = 6,547,888,611.65/87,932.09
  6. Step 6: Final answer
    x = 74,465.29

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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.