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Finding the Fourth Proportional to 75,606.40, 113,404.80 and 25,686.40

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Solution

The fourth proportional to 75,606.40, 113,404.80 and 25,686.40 is: 38,527.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,606.40 : 113,404.80 = 25,686.40 : x
  2. Step 2: Convert to fraction form
    75,606.40/113,404.80 = 25,686.40/x
  3. Step 3: Cross multiply
    75,606.40x = 113,404.80 × 25,686.40
  4. Step 4: Simplify right side
    75,606.40x = 2,912,961,054.72
  5. Step 5: Solve for x
    x = 2,912,961,054.72/75,606.40
  6. Step 6: Final answer
    x = 38,527.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.