Home / 54,909.83-75,779.42-31,036.68

Finding the Fourth Proportional to 54,909.83, 75,779.42 and 31,036.68

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Solution

The fourth proportional to 54,909.83, 75,779.42 and 31,036.68 is: 42,832.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,909.83 : 75,779.42 = 31,036.68 : x
  2. Step 2: Convert to fraction form
    54,909.83/75,779.42 = 31,036.68/x
  3. Step 3: Cross multiply
    54,909.83x = 75,779.42 × 31,036.68
  4. Step 4: Simplify right side
    54,909.83x = 2,351,941,502.68
  5. Step 5: Solve for x
    x = 2,351,941,502.68/54,909.83
  6. Step 6: Final answer
    x = 42,832.79

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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.