Home / 49,981.47-68,965.76-30,871.95

Finding the Fourth Proportional to 49,981.47, 68,965.76 and 30,871.95

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Solution

The fourth proportional to 49,981.47, 68,965.76 and 30,871.95 is: 42,597.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,981.47 : 68,965.76 = 30,871.95 : x
  2. Step 2: Convert to fraction form
    49,981.47/68,965.76 = 30,871.95/x
  3. Step 3: Cross multiply
    49,981.47x = 68,965.76 × 30,871.95
  4. Step 4: Simplify right side
    49,981.47x = 2,129,107,340.07
  5. Step 5: Solve for x
    x = 2,129,107,340.07/49,981.47
  6. Step 6: Final answer
    x = 42,597.93

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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.