Home / 74,475.13-102,780.39-41,772.59

Finding the Fourth Proportional to 74,475.13, 102,780.39 and 41,772.59

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Solution

The fourth proportional to 74,475.13, 102,780.39 and 41,772.59 is: 57,648.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,475.13 : 102,780.39 = 41,772.59 : x
  2. Step 2: Convert to fraction form
    74,475.13/102,780.39 = 41,772.59/x
  3. Step 3: Cross multiply
    74,475.13x = 102,780.39 × 41,772.59
  4. Step 4: Simplify right side
    74,475.13x = 4,293,403,697.82
  5. Step 5: Solve for x
    x = 4,293,403,697.82/74,475.13
  6. Step 6: Final answer
    x = 57,648.82

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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.