Home / 47,761.78-71,633.47-45,391.03

Finding the Fourth Proportional to 47,761.78, 71,633.47 and 45,391.03

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Solution

The fourth proportional to 47,761.78, 71,633.47 and 45,391.03 is: 68,077.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,761.78 : 71,633.47 = 45,391.03 : x
  2. Step 2: Convert to fraction form
    47,761.78/71,633.47 = 45,391.03/x
  3. Step 3: Cross multiply
    47,761.78x = 71,633.47 × 45,391.03
  4. Step 4: Simplify right side
    47,761.78x = 3,251,516,985.77
  5. Step 5: Solve for x
    x = 3,251,516,985.77/47,761.78
  6. Step 6: Final answer
    x = 68,077.80

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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.