Home / 70,691.13-97,553.77-40,486.47

Finding the Fourth Proportional to 70,691.13, 97,553.77 and 40,486.47

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Solution

The fourth proportional to 70,691.13, 97,553.77 and 40,486.47 is: 55,871.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,691.13 : 97,553.77 = 40,486.47 : x
  2. Step 2: Convert to fraction form
    70,691.13/97,553.77 = 40,486.47/x
  3. Step 3: Cross multiply
    70,691.13x = 97,553.77 × 40,486.47
  4. Step 4: Simplify right side
    70,691.13x = 3,949,607,315.45
  5. Step 5: Solve for x
    x = 3,949,607,315.45/70,691.13
  6. Step 6: Final answer
    x = 55,871.33

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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.