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Finding the Fourth Proportional to 69,870.99, 96,422.34 and 38,040.72

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Solution

The fourth proportional to 69,870.99, 96,422.34 and 38,040.72 is: 52,496.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,870.99 : 96,422.34 = 38,040.72 : x
  2. Step 2: Convert to fraction form
    69,870.99/96,422.34 = 38,040.72/x
  3. Step 3: Cross multiply
    69,870.99x = 96,422.34 × 38,040.72
  4. Step 4: Simplify right side
    69,870.99x = 3,667,975,237.68
  5. Step 5: Solve for x
    x = 3,667,975,237.68/69,870.99
  6. Step 6: Final answer
    x = 52,496.40

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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.