Home / 88,143.34-121,608.30-49,897.66

Finding the Fourth Proportional to 88,143.34, 121,608.30 and 49,897.66

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Solution

The fourth proportional to 88,143.34, 121,608.30 and 49,897.66 is: 68,842.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,143.34 : 121,608.30 = 49,897.66 : x
  2. Step 2: Convert to fraction form
    88,143.34/121,608.30 = 49,897.66/x
  3. Step 3: Cross multiply
    88,143.34x = 121,608.30 × 49,897.66
  4. Step 4: Simplify right side
    88,143.34x = 6,067,969,606.58
  5. Step 5: Solve for x
    x = 6,067,969,606.58/88,143.34
  6. Step 6: Final answer
    x = 68,842.07

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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.