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Finding the Fourth Proportional to 67,696.32, 101,528 and 28,253.76

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Solution

The fourth proportional to 67,696.32, 101,528 and 28,253.76 is: 42,373.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,696.32 : 101,528 = 28,253.76 : x
  2. Step 2: Convert to fraction form
    67,696.32/101,528 = 28,253.76/x
  3. Step 3: Cross multiply
    67,696.32x = 101,528 × 28,253.76
  4. Step 4: Simplify right side
    67,696.32x = 2,868,547,745.28
  5. Step 5: Solve for x
    x = 2,868,547,745.28/67,696.32
  6. Step 6: Final answer
    x = 42,373.76

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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.