Home / 71,729.16-98,988.08-39,464.56

Finding the Fourth Proportional to 71,729.16, 98,988.08 and 39,464.56

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Solution

The fourth proportional to 71,729.16, 98,988.08 and 39,464.56 is: 54,462.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,729.16 : 98,988.08 = 39,464.56 : x
  2. Step 2: Convert to fraction form
    71,729.16/98,988.08 = 39,464.56/x
  3. Step 3: Cross multiply
    71,729.16x = 98,988.08 × 39,464.56
  4. Step 4: Simplify right side
    71,729.16x = 3,906,521,022.44
  5. Step 5: Solve for x
    x = 3,906,521,022.44/71,729.16
  6. Step 6: Final answer
    x = 54,462.10

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1.5x scale

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.