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Finding the Fourth Proportional to 54,476.70, 75,186.78 and 45,387.67

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Solution

The fourth proportional to 54,476.70, 75,186.78 and 45,387.67 is: 62,642.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,476.70 : 75,186.78 = 45,387.67 : x
  2. Step 2: Convert to fraction form
    54,476.70/75,186.78 = 45,387.67/x
  3. Step 3: Cross multiply
    54,476.70x = 75,186.78 × 45,387.67
  4. Step 4: Simplify right side
    54,476.70x = 3,412,552,759.00
  5. Step 5: Solve for x
    x = 3,412,552,759.00/54,476.70
  6. Step 6: Final answer
    x = 62,642.43

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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.