Home / 78,263.96-117,412.92-25,671.47

Finding the Fourth Proportional to 78,263.96, 117,412.92 and 25,671.47

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Solution

The fourth proportional to 78,263.96, 117,412.92 and 25,671.47 is: 38,512.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,263.96 : 117,412.92 = 25,671.47 : x
  2. Step 2: Convert to fraction form
    78,263.96/117,412.92 = 25,671.47/x
  3. Step 3: Cross multiply
    78,263.96x = 117,412.92 × 25,671.47
  4. Step 4: Simplify right side
    78,263.96x = 3,014,161,666.33
  5. Step 5: Solve for x
    x = 3,014,161,666.33/78,263.96
  6. Step 6: Final answer
    x = 38,512.77

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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.