Home / 67,728.42-101,602.16-28,276.56

Finding the Fourth Proportional to 67,728.42, 101,602.16 and 28,276.56

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Solution

The fourth proportional to 67,728.42, 101,602.16 and 28,276.56 is: 42,418.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,728.42 : 101,602.16 = 28,276.56 : x
  2. Step 2: Convert to fraction form
    67,728.42/101,602.16 = 28,276.56/x
  3. Step 3: Cross multiply
    67,728.42x = 101,602.16 × 28,276.56
  4. Step 4: Simplify right side
    67,728.42x = 2,872,959,431.99
  5. Step 5: Solve for x
    x = 2,872,959,431.99/67,728.42
  6. Step 6: Final answer
    x = 42,418.82

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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.