Home / 54,353.12-75,000.48-30,479.72

Finding the Fourth Proportional to 54,353.12, 75,000.48 and 30,479.72

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Solution

The fourth proportional to 54,353.12, 75,000.48 and 30,479.72 is: 42,058.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,353.12 : 75,000.48 = 30,479.72 : x
  2. Step 2: Convert to fraction form
    54,353.12/75,000.48 = 30,479.72/x
  3. Step 3: Cross multiply
    54,353.12x = 75,000.48 × 30,479.72
  4. Step 4: Simplify right side
    54,353.12x = 2,285,993,630.27
  5. Step 5: Solve for x
    x = 2,285,993,630.27/54,353.12
  6. Step 6: Final answer
    x = 42,058.19

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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.