Home / 70,314.65-97,031.79-40,109.75

Finding the Fourth Proportional to 70,314.65, 97,031.79 and 40,109.75

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Solution

The fourth proportional to 70,314.65, 97,031.79 and 40,109.75 is: 55,350.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,314.65 : 97,031.79 = 40,109.75 : x
  2. Step 2: Convert to fraction form
    70,314.65/97,031.79 = 40,109.75/x
  3. Step 3: Cross multiply
    70,314.65x = 97,031.79 × 40,109.75
  4. Step 4: Simplify right side
    70,314.65x = 3,891,920,717.66
  5. Step 5: Solve for x
    x = 3,891,920,717.66/70,314.65
  6. Step 6: Final answer
    x = 55,350.07

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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.