Home / 47,960.80-71,973.60-31,280.20

Finding the Fourth Proportional to 47,960.80, 71,973.60 and 31,280.20

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Solution

The fourth proportional to 47,960.80, 71,973.60 and 31,280.20 is: 46,941.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,960.80 : 71,973.60 = 31,280.20 : x
  2. Step 2: Convert to fraction form
    47,960.80/71,973.60 = 31,280.20/x
  3. Step 3: Cross multiply
    47,960.80x = 71,973.60 × 31,280.20
  4. Step 4: Simplify right side
    47,960.80x = 2,251,348,602.72
  5. Step 5: Solve for x
    x = 2,251,348,602.72/47,960.80
  6. Step 6: Final answer
    x = 46,941.43

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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.