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Finding the Fourth Proportional to 78,763.67, 108,700.31 and 44,782.82

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Solution

The fourth proportional to 78,763.67, 108,700.31 and 44,782.82 is: 61,803.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,763.67 : 108,700.31 = 44,782.82 : x
  2. Step 2: Convert to fraction form
    78,763.67/108,700.31 = 44,782.82/x
  3. Step 3: Cross multiply
    78,763.67x = 108,700.31 × 44,782.82
  4. Step 4: Simplify right side
    78,763.67x = 4,867,905,649.26
  5. Step 5: Solve for x
    x = 4,867,905,649.26/78,763.67
  6. Step 6: Final answer
    x = 61,803.95

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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.