Home / 78,066.34-117,118.14-25,475.92

Finding the Fourth Proportional to 78,066.34, 117,118.14 and 25,475.92

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Solution

The fourth proportional to 78,066.34, 117,118.14 and 25,475.92 is: 38,219.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,066.34 : 117,118.14 = 25,475.92 : x
  2. Step 2: Convert to fraction form
    78,066.34/117,118.14 = 25,475.92/x
  3. Step 3: Cross multiply
    78,066.34x = 117,118.14 × 25,475.92
  4. Step 4: Simplify right side
    78,066.34x = 2,983,692,365.19
  5. Step 5: Solve for x
    x = 2,983,692,365.19/78,066.34
  6. Step 6: Final answer
    x = 38,219.96

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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.