Home / 47,810.20-71,726.10-28,078.60

Finding the Fourth Proportional to 47,810.20, 71,726.10 and 28,078.60

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Solution

The fourth proportional to 47,810.20, 71,726.10 and 28,078.60 is: 42,124.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,810.20 : 71,726.10 = 28,078.60 : x
  2. Step 2: Convert to fraction form
    47,810.20/71,726.10 = 28,078.60/x
  3. Step 3: Cross multiply
    47,810.20x = 71,726.10 × 28,078.60
  4. Step 4: Simplify right side
    47,810.20x = 2,013,968,471.46
  5. Step 5: Solve for x
    x = 2,013,968,471.46/47,810.20
  6. Step 6: Final answer
    x = 42,124.24

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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.