Home / 54,909.99-75,779.19-31,040.73

Finding the Fourth Proportional to 54,909.99, 75,779.19 and 31,040.73

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Solution

The fourth proportional to 54,909.99, 75,779.19 and 31,040.73 is: 42,838.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,909.99 : 75,779.19 = 31,040.73 : x
  2. Step 2: Convert to fraction form
    54,909.99/75,779.19 = 31,040.73/x
  3. Step 3: Cross multiply
    54,909.99x = 75,779.19 × 31,040.73
  4. Step 4: Simplify right side
    54,909.99x = 2,352,241,376.41
  5. Step 5: Solve for x
    x = 2,352,241,376.41/54,909.99
  6. Step 6: Final answer
    x = 42,838.13

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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.