Home / 51,841.20-77,761.80-47,540.40

Finding the Fourth Proportional to 51,841.20, 77,761.80 and 47,540.40

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Solution

The fourth proportional to 51,841.20, 77,761.80 and 47,540.40 is: 71,310.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,841.20 : 77,761.80 = 47,540.40 : x
  2. Step 2: Convert to fraction form
    51,841.20/77,761.80 = 47,540.40/x
  3. Step 3: Cross multiply
    51,841.20x = 77,761.80 × 47,540.40
  4. Step 4: Simplify right side
    51,841.20x = 3,696,827,076.72
  5. Step 5: Solve for x
    x = 3,696,827,076.72/51,841.20
  6. Step 6: Final answer
    x = 71,310.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.