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Finding the Fourth Proportional to 51,062.08, 70,472 and 28,706.08

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Solution

The fourth proportional to 51,062.08, 70,472 and 28,706.08 is: 39,617.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,062.08 : 70,472 = 28,706.08 : x
  2. Step 2: Convert to fraction form
    51,062.08/70,472 = 28,706.08/x
  3. Step 3: Cross multiply
    51,062.08x = 70,472 × 28,706.08
  4. Step 4: Simplify right side
    51,062.08x = 2,022,974,869.76
  5. Step 5: Solve for x
    x = 2,022,974,869.76/51,062.08
  6. Step 6: Final answer
    x = 39,617.95

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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.