Home / 52,702.62-72,731.10-28,830.72

Finding the Fourth Proportional to 52,702.62, 72,731.10 and 28,830.72

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Solution

The fourth proportional to 52,702.62, 72,731.10 and 28,830.72 is: 39,787.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,702.62 : 72,731.10 = 28,830.72 : x
  2. Step 2: Convert to fraction form
    52,702.62/72,731.10 = 28,830.72/x
  3. Step 3: Cross multiply
    52,702.62x = 72,731.10 × 28,830.72
  4. Step 4: Simplify right side
    52,702.62x = 2,096,889,979.39
  5. Step 5: Solve for x
    x = 2,096,889,979.39/52,702.62
  6. Step 6: Final answer
    x = 39,787.21

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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.