Home / 74,614.18-102,961.29-42,775.78

Finding the Fourth Proportional to 74,614.18, 102,961.29 and 42,775.78

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Solution

The fourth proportional to 74,614.18, 102,961.29 and 42,775.78 is: 59,026.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,614.18 : 102,961.29 = 42,775.78 : x
  2. Step 2: Convert to fraction form
    74,614.18/102,961.29 = 42,775.78/x
  3. Step 3: Cross multiply
    74,614.18x = 102,961.29 × 42,775.78
  4. Step 4: Simplify right side
    74,614.18x = 4,404,249,489.56
  5. Step 5: Solve for x
    x = 4,404,249,489.56/74,614.18
  6. Step 6: Final answer
    x = 59,026.98

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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.