Home / 61,640.68-85,066.32-34,781.62

Finding the Fourth Proportional to 61,640.68, 85,066.32 and 34,781.62

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Solution

The fourth proportional to 61,640.68, 85,066.32 and 34,781.62 is: 47,999.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,640.68 : 85,066.32 = 34,781.62 : x
  2. Step 2: Convert to fraction form
    61,640.68/85,066.32 = 34,781.62/x
  3. Step 3: Cross multiply
    61,640.68x = 85,066.32 × 34,781.62
  4. Step 4: Simplify right side
    61,640.68x = 2,958,744,417.04
  5. Step 5: Solve for x
    x = 2,958,744,417.04/61,640.68
  6. Step 6: Final answer
    x = 47,999.87

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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.