Home / 54,654.76-75,423.99-30,779.20

Finding the Fourth Proportional to 54,654.76, 75,423.99 and 30,779.20

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Solution

The fourth proportional to 54,654.76, 75,423.99 and 30,779.20 is: 42,475.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,654.76 : 75,423.99 = 30,779.20 : x
  2. Step 2: Convert to fraction form
    54,654.76/75,423.99 = 30,779.20/x
  3. Step 3: Cross multiply
    54,654.76x = 75,423.99 × 30,779.20
  4. Step 4: Simplify right side
    54,654.76x = 2,321,490,073.01
  5. Step 5: Solve for x
    x = 2,321,490,073.01/54,654.76
  6. Step 6: Final answer
    x = 42,475.53

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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.