Home / 75,833.48-113,818.80-38,419.40

Finding the Fourth Proportional to 75,833.48, 113,818.80 and 38,419.40

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Solution

The fourth proportional to 75,833.48, 113,818.80 and 38,419.40 is: 57,663.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,833.48 : 113,818.80 = 38,419.40 : x
  2. Step 2: Convert to fraction form
    75,833.48/113,818.80 = 38,419.40/x
  3. Step 3: Cross multiply
    75,833.48x = 113,818.80 × 38,419.40
  4. Step 4: Simplify right side
    75,833.48x = 4,372,850,004.72
  5. Step 5: Solve for x
    x = 4,372,850,004.72/75,833.48
  6. Step 6: Final answer
    x = 57,663.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.