Home / 52,811.10-72,878.90-28,937.71

Finding the Fourth Proportional to 52,811.10, 72,878.90 and 28,937.71

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Solution

The fourth proportional to 52,811.10, 72,878.90 and 28,937.71 is: 39,933.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,811.10 : 72,878.90 = 28,937.71 : x
  2. Step 2: Convert to fraction form
    52,811.10/72,878.90 = 28,937.71/x
  3. Step 3: Cross multiply
    52,811.10x = 72,878.90 × 28,937.71
  4. Step 4: Simplify right side
    52,811.10x = 2,108,948,146.43
  5. Step 5: Solve for x
    x = 2,108,948,146.43/52,811.10
  6. Step 6: Final answer
    x = 39,933.80

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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.