Home / 50,381.40-69,479.13-31,264.28

Finding the Fourth Proportional to 50,381.40, 69,479.13 and 31,264.28

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Solution

The fourth proportional to 50,381.40, 69,479.13 and 31,264.28 is: 43,115.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,381.40 : 69,479.13 = 31,264.28 : x
  2. Step 2: Convert to fraction form
    50,381.40/69,479.13 = 31,264.28/x
  3. Step 3: Cross multiply
    50,381.40x = 69,479.13 × 31,264.28
  4. Step 4: Simplify right side
    50,381.40x = 2,172,214,974.48
  5. Step 5: Solve for x
    x = 2,172,214,974.48/50,381.40
  6. Step 6: Final answer
    x = 43,115.42

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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.