Home / 78,094.19-117,126.38-38,073

Finding the Fourth Proportional to 78,094.19, 117,126.38 and 38,073

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Solution

The fourth proportional to 78,094.19, 117,126.38 and 38,073 is: 57,102.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,094.19 : 117,126.38 = 38,073 : x
  2. Step 2: Convert to fraction form
    78,094.19/117,126.38 = 38,073/x
  3. Step 3: Cross multiply
    78,094.19x = 117,126.38 × 38,073
  4. Step 4: Simplify right side
    78,094.19x = 4,459,352,475.38
  5. Step 5: Solve for x
    x = 4,459,352,475.38/78,094.19
  6. Step 6: Final answer
    x = 57,102.23

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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.