Home / 70,376.50-97,121.19-40,164.64

Finding the Fourth Proportional to 70,376.50, 97,121.19 and 40,164.64

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Solution

The fourth proportional to 70,376.50, 97,121.19 and 40,164.64 is: 55,428.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,376.50 : 97,121.19 = 40,164.64 : x
  2. Step 2: Convert to fraction form
    70,376.50/97,121.19 = 40,164.64/x
  3. Step 3: Cross multiply
    70,376.50x = 97,121.19 × 40,164.64
  4. Step 4: Simplify right side
    70,376.50x = 3,900,837,632.72
  5. Step 5: Solve for x
    x = 3,900,837,632.72/70,376.50
  6. Step 6: Final answer
    x = 55,428.13

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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.