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Finding the Fourth Proportional to 54,653, 75,408.18 and 30,774.92

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Solution

The fourth proportional to 54,653, 75,408.18 and 30,774.92 is: 42,462.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,653 : 75,408.18 = 30,774.92 : x
  2. Step 2: Convert to fraction form
    54,653/75,408.18 = 30,774.92/x
  3. Step 3: Cross multiply
    54,653x = 75,408.18 × 30,774.92
  4. Step 4: Simplify right side
    54,653x = 2,320,680,706.85
  5. Step 5: Solve for x
    x = 2,320,680,706.85/54,653
  6. Step 6: Final answer
    x = 42,462.09

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Double scale
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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.