Home / 92,407.13-138,589.78-42,439.19

Finding the Fourth Proportional to 92,407.13, 138,589.78 and 42,439.19

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Solution

The fourth proportional to 92,407.13, 138,589.78 and 42,439.19 is: 63,649.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,407.13 : 138,589.78 = 42,439.19 : x
  2. Step 2: Convert to fraction form
    92,407.13/138,589.78 = 42,439.19/x
  3. Step 3: Cross multiply
    92,407.13x = 138,589.78 × 42,439.19
  4. Step 4: Simplify right side
    92,407.13x = 5,881,638,005.48
  5. Step 5: Solve for x
    x = 5,881,638,005.48/92,407.13
  6. Step 6: Final answer
    x = 63,649.18

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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.