Home / 70,395.13-97,144.68-38,129.79

Finding the Fourth Proportional to 70,395.13, 97,144.68 and 38,129.79

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Solution

The fourth proportional to 70,395.13, 97,144.68 and 38,129.79 is: 52,618.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,395.13 : 97,144.68 = 38,129.79 : x
  2. Step 2: Convert to fraction form
    70,395.13/97,144.68 = 38,129.79/x
  3. Step 3: Cross multiply
    70,395.13x = 97,144.68 × 38,129.79
  4. Step 4: Simplify right side
    70,395.13x = 3,704,106,248.02
  5. Step 5: Solve for x
    x = 3,704,106,248.02/70,395.13
  6. Step 6: Final answer
    x = 52,618.79

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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.