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Finding the Fourth Proportional to 77,339.58, 106,735.49 and 45,072.42

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Solution

The fourth proportional to 77,339.58, 106,735.49 and 45,072.42 is: 62,203.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,339.58 : 106,735.49 = 45,072.42 : x
  2. Step 2: Convert to fraction form
    77,339.58/106,735.49 = 45,072.42/x
  3. Step 3: Cross multiply
    77,339.58x = 106,735.49 × 45,072.42
  4. Step 4: Simplify right side
    77,339.58x = 4,810,826,834.19
  5. Step 5: Solve for x
    x = 4,810,826,834.19/77,339.58
  6. Step 6: Final answer
    x = 62,203.94

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1.5x scale

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.