Home / 69,971.01-96,557.13-38,139.21

Finding the Fourth Proportional to 69,971.01, 96,557.13 and 38,139.21

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Solution

The fourth proportional to 69,971.01, 96,557.13 and 38,139.21 is: 52,630.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,971.01 : 96,557.13 = 38,139.21 : x
  2. Step 2: Convert to fraction form
    69,971.01/96,557.13 = 38,139.21/x
  3. Step 3: Cross multiply
    69,971.01x = 96,557.13 × 38,139.21
  4. Step 4: Simplify right side
    69,971.01x = 3,682,612,658.07
  5. Step 5: Solve for x
    x = 3,682,612,658.07/69,971.01
  6. Step 6: Final answer
    x = 52,630.55

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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.