Home / 92,430.72-138,640.61-25,869.38

Finding the Fourth Proportional to 92,430.72, 138,640.61 and 25,869.38

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Solution

The fourth proportional to 92,430.72, 138,640.61 and 25,869.38 is: 38,802.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,430.72 : 138,640.61 = 25,869.38 : x
  2. Step 2: Convert to fraction form
    92,430.72/138,640.61 = 25,869.38/x
  3. Step 3: Cross multiply
    92,430.72x = 138,640.61 × 25,869.38
  4. Step 4: Simplify right side
    92,430.72x = 3,586,546,341.59
  5. Step 5: Solve for x
    x = 3,586,546,341.59/92,430.72
  6. Step 6: Final answer
    x = 38,802.53

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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.