Home / 50,718.38-69,990.12-28,059.84

Finding the Fourth Proportional to 50,718.38, 69,990.12 and 28,059.84

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Solution

The fourth proportional to 50,718.38, 69,990.12 and 28,059.84 is: 38,721.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,718.38 : 69,990.12 = 28,059.84 : x
  2. Step 2: Convert to fraction form
    50,718.38/69,990.12 = 28,059.84/x
  3. Step 3: Cross multiply
    50,718.38x = 69,990.12 × 28,059.84
  4. Step 4: Simplify right side
    50,718.38x = 1,963,911,568.78
  5. Step 5: Solve for x
    x = 1,963,911,568.78/50,718.38
  6. Step 6: Final answer
    x = 38,721.89

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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.