Home / 70,772.08-97,678.56-40,568.80

Finding the Fourth Proportional to 70,772.08, 97,678.56 and 40,568.80

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Solution

The fourth proportional to 70,772.08, 97,678.56 and 40,568.80 is: 55,992.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,772.08 : 97,678.56 = 40,568.80 : x
  2. Step 2: Convert to fraction form
    70,772.08/97,678.56 = 40,568.80/x
  3. Step 3: Cross multiply
    70,772.08x = 97,678.56 × 40,568.80
  4. Step 4: Simplify right side
    70,772.08x = 3,962,701,964.93
  5. Step 5: Solve for x
    x = 3,962,701,964.93/70,772.08
  6. Step 6: Final answer
    x = 55,992.45

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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.