Home / 50,721.40-69,994.28-28,061.66

Finding the Fourth Proportional to 50,721.40, 69,994.28 and 28,061.66

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Solution

The fourth proportional to 50,721.40, 69,994.28 and 28,061.66 is: 38,724.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,721.40 : 69,994.28 = 28,061.66 : x
  2. Step 2: Convert to fraction form
    50,721.40/69,994.28 = 28,061.66/x
  3. Step 3: Cross multiply
    50,721.40x = 69,994.28 × 28,061.66
  4. Step 4: Simplify right side
    50,721.40x = 1,964,155,687.30
  5. Step 5: Solve for x
    x = 1,964,155,687.30/50,721.40
  6. Step 6: Final answer
    x = 38,724.40

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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.