Home / 70,072.16-96,697.14-39,855.20

Finding the Fourth Proportional to 70,072.16, 96,697.14 and 39,855.20

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Solution

The fourth proportional to 70,072.16, 96,697.14 and 39,855.20 is: 54,998.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,072.16 : 96,697.14 = 39,855.20 : x
  2. Step 2: Convert to fraction form
    70,072.16/96,697.14 = 39,855.20/x
  3. Step 3: Cross multiply
    70,072.16x = 96,697.14 × 39,855.20
  4. Step 4: Simplify right side
    70,072.16x = 3,853,883,854.13
  5. Step 5: Solve for x
    x = 3,853,883,854.13/70,072.16
  6. Step 6: Final answer
    x = 54,998.79

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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.