Home / 92,278.89-138,437.64-38,971.04

Finding the Fourth Proportional to 92,278.89, 138,437.64 and 38,971.04

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Solution

The fourth proportional to 92,278.89, 138,437.64 and 38,971.04 is: 58,464.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,278.89 : 138,437.64 = 38,971.04 : x
  2. Step 2: Convert to fraction form
    92,278.89/138,437.64 = 38,971.04/x
  3. Step 3: Cross multiply
    92,278.89x = 138,437.64 × 38,971.04
  4. Step 4: Simplify right side
    92,278.89x = 5,395,058,113.76
  5. Step 5: Solve for x
    x = 5,395,058,113.76/92,278.89
  6. Step 6: Final answer
    x = 58,464.71

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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.