Home / 78,003.42-116,992.89-25,412.46

Finding the Fourth Proportional to 78,003.42, 116,992.89 and 25,412.46

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Solution

The fourth proportional to 78,003.42, 116,992.89 and 25,412.46 is: 38,114.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,003.42 : 116,992.89 = 25,412.46 : x
  2. Step 2: Convert to fraction form
    78,003.42/116,992.89 = 25,412.46/x
  3. Step 3: Cross multiply
    78,003.42x = 116,992.89 × 25,412.46
  4. Step 4: Simplify right side
    78,003.42x = 2,973,077,137.41
  5. Step 5: Solve for x
    x = 2,973,077,137.41/78,003.42
  6. Step 6: Final answer
    x = 38,114.70

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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.