Home / 83,510.32-125,278.44-28,102

Finding the Fourth Proportional to 83,510.32, 125,278.44 and 28,102

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Solution

The fourth proportional to 83,510.32, 125,278.44 and 28,102 is: 42,157.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,510.32 : 125,278.44 = 28,102 : x
  2. Step 2: Convert to fraction form
    83,510.32/125,278.44 = 28,102/x
  3. Step 3: Cross multiply
    83,510.32x = 125,278.44 × 28,102
  4. Step 4: Simplify right side
    83,510.32x = 3,520,574,720.88
  5. Step 5: Solve for x
    x = 3,520,574,720.88/83,510.32
  6. Step 6: Final answer
    x = 42,157.36

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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.