Home / 52,740.11-72,780.74-28,540.52

Finding the Fourth Proportional to 52,740.11, 72,780.74 and 28,540.52

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Solution

The fourth proportional to 52,740.11, 72,780.74 and 28,540.52 is: 39,385.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,740.11 : 72,780.74 = 28,540.52 : x
  2. Step 2: Convert to fraction form
    52,740.11/72,780.74 = 28,540.52/x
  3. Step 3: Cross multiply
    52,740.11x = 72,780.74 × 28,540.52
  4. Step 4: Simplify right side
    52,740.11x = 2,077,199,844.62
  5. Step 5: Solve for x
    x = 2,077,199,844.62/52,740.11
  6. Step 6: Final answer
    x = 39,385.58

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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.