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Finding the Fourth Proportional to 61,158, 84,398.19 and 35,681.88

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Solution

The fourth proportional to 61,158, 84,398.19 and 35,681.88 is: 49,241.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,158 : 84,398.19 = 35,681.88 : x
  2. Step 2: Convert to fraction form
    61,158/84,398.19 = 35,681.88/x
  3. Step 3: Cross multiply
    61,158x = 84,398.19 × 35,681.88
  4. Step 4: Simplify right side
    61,158x = 3,011,486,087.80
  5. Step 5: Solve for x
    x = 3,011,486,087.80/61,158
  6. Step 6: Final answer
    x = 49,241.08

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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.