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Finding the Fourth Proportional to 78,347.38, 108,126.08 and 44,361.86

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Solution

The fourth proportional to 78,347.38, 108,126.08 and 44,361.86 is: 61,223.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,347.38 : 108,126.08 = 44,361.86 : x
  2. Step 2: Convert to fraction form
    78,347.38/108,126.08 = 44,361.86/x
  3. Step 3: Cross multiply
    78,347.38x = 108,126.08 × 44,361.86
  4. Step 4: Simplify right side
    78,347.38x = 4,796,674,023.31
  5. Step 5: Solve for x
    x = 4,796,674,023.31/78,347.38
  6. Step 6: Final answer
    x = 61,223.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.