Home / 50,312.13-75,470.78-12,872.53

Finding the Fourth Proportional to 50,312.13, 75,470.78 and 12,872.53

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Solution

The fourth proportional to 50,312.13, 75,470.78 and 12,872.53 is: 19,309.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,312.13 : 75,470.78 = 12,872.53 : x
  2. Step 2: Convert to fraction form
    50,312.13/75,470.78 = 12,872.53/x
  3. Step 3: Cross multiply
    50,312.13x = 75,470.78 × 12,872.53
  4. Step 4: Simplify right side
    50,312.13x = 971,499,502.32
  5. Step 5: Solve for x
    x = 971,499,502.32/50,312.13
  6. Step 6: Final answer
    x = 19,309.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.