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Finding the Fourth Proportional to 81,674.40, 112,701.60 and 45,859.44

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Solution

The fourth proportional to 81,674.40, 112,701.60 and 45,859.44 is: 63,280.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,674.40 : 112,701.60 = 45,859.44 : x
  2. Step 2: Convert to fraction form
    81,674.40/112,701.60 = 45,859.44/x
  3. Step 3: Cross multiply
    81,674.40x = 112,701.60 × 45,859.44
  4. Step 4: Simplify right side
    81,674.40x = 5,168,432,263.10
  5. Step 5: Solve for x
    x = 5,168,432,263.10/81,674.40
  6. Step 6: Final answer
    x = 63,280.93

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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.