Home / 54,678.12-75,456.60-30,478.44

Finding the Fourth Proportional to 54,678.12, 75,456.60 and 30,478.44

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Solution

The fourth proportional to 54,678.12, 75,456.60 and 30,478.44 is: 42,060.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,678.12 : 75,456.60 = 30,478.44 : x
  2. Step 2: Convert to fraction form
    54,678.12/75,456.60 = 30,478.44/x
  3. Step 3: Cross multiply
    54,678.12x = 75,456.60 × 30,478.44
  4. Step 4: Simplify right side
    54,678.12x = 2,299,799,455.70
  5. Step 5: Solve for x
    x = 2,299,799,455.70/54,678.12
  6. Step 6: Final answer
    x = 42,060.69

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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.