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Finding the Fourth Proportional to 52,703.87, 72,731.95 and 28,830.02

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Solution

The fourth proportional to 52,703.87, 72,731.95 and 28,830.02 is: 39,785.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,703.87 : 72,731.95 = 28,830.02 : x
  2. Step 2: Convert to fraction form
    52,703.87/72,731.95 = 28,830.02/x
  3. Step 3: Cross multiply
    52,703.87x = 72,731.95 × 28,830.02
  4. Step 4: Simplify right side
    52,703.87x = 2,096,863,137.40
  5. Step 5: Solve for x
    x = 2,096,863,137.40/52,703.87
  6. Step 6: Final answer
    x = 39,785.76

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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.