Home / 47,826.80-71,772.60-31,146.20

Finding the Fourth Proportional to 47,826.80, 71,772.60 and 31,146.20

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Solution

The fourth proportional to 47,826.80, 71,772.60 and 31,146.20 is: 46,740.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,826.80 : 71,772.60 = 31,146.20 : x
  2. Step 2: Convert to fraction form
    47,826.80/71,772.60 = 31,146.20/x
  3. Step 3: Cross multiply
    47,826.80x = 71,772.60 × 31,146.20
  4. Step 4: Simplify right side
    47,826.80x = 2,235,443,754.12
  5. Step 5: Solve for x
    x = 2,235,443,754.12/47,826.80
  6. Step 6: Final answer
    x = 46,740.40

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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.