Home / 75,868.80-113,718.34-28,438.24

Finding the Fourth Proportional to 75,868.80, 113,718.34 and 28,438.24

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Solution

The fourth proportional to 75,868.80, 113,718.34 and 28,438.24 is: 42,625.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,868.80 : 113,718.34 = 28,438.24 : x
  2. Step 2: Convert to fraction form
    75,868.80/113,718.34 = 28,438.24/x
  3. Step 3: Cross multiply
    75,868.80x = 113,718.34 × 28,438.24
  4. Step 4: Simplify right side
    75,868.80x = 3,233,949,445.32
  5. Step 5: Solve for x
    x = 3,233,949,445.32/75,868.80
  6. Step 6: Final answer
    x = 42,625.55

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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.