Home / 70,377.28-97,118.72-40,162.08

Finding the Fourth Proportional to 70,377.28, 97,118.72 and 40,162.08

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Solution

The fourth proportional to 70,377.28, 97,118.72 and 40,162.08 is: 55,422.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,377.28 : 97,118.72 = 40,162.08 : x
  2. Step 2: Convert to fraction form
    70,377.28/97,118.72 = 40,162.08/x
  3. Step 3: Cross multiply
    70,377.28x = 97,118.72 × 40,162.08
  4. Step 4: Simplify right side
    70,377.28x = 3,900,489,802.14
  5. Step 5: Solve for x
    x = 3,900,489,802.14/70,377.28
  6. Step 6: Final answer
    x = 55,422.57

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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.