Home / 85,365.18-117,800.86-47,123.91

Finding the Fourth Proportional to 85,365.18, 117,800.86 and 47,123.91

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Solution

The fourth proportional to 85,365.18, 117,800.86 and 47,123.91 is: 65,029.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,365.18 : 117,800.86 = 47,123.91 : x
  2. Step 2: Convert to fraction form
    85,365.18/117,800.86 = 47,123.91/x
  3. Step 3: Cross multiply
    85,365.18x = 117,800.86 × 47,123.91
  4. Step 4: Simplify right side
    85,365.18x = 5,551,236,830.06
  5. Step 5: Solve for x
    x = 5,551,236,830.06/85,365.18
  6. Step 6: Final answer
    x = 65,029.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.