Home / 75,115.60-103,657.98-41,123.28

Finding the Fourth Proportional to 75,115.60, 103,657.98 and 41,123.28

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Solution

The fourth proportional to 75,115.60, 103,657.98 and 41,123.28 is: 56,749.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,115.60 : 103,657.98 = 41,123.28 : x
  2. Step 2: Convert to fraction form
    75,115.60/103,657.98 = 41,123.28/x
  3. Step 3: Cross multiply
    75,115.60x = 103,657.98 × 41,123.28
  4. Step 4: Simplify right side
    75,115.60x = 4,262,756,135.77
  5. Step 5: Solve for x
    x = 4,262,756,135.77/75,115.60
  6. Step 6: Final answer
    x = 56,749.28

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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.