Home / 78,949.72-108,946.65-43,133.14

Finding the Fourth Proportional to 78,949.72, 108,946.65 and 43,133.14

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Solution

The fourth proportional to 78,949.72, 108,946.65 and 43,133.14 is: 59,521.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,949.72 : 108,946.65 = 43,133.14 : x
  2. Step 2: Convert to fraction form
    78,949.72/108,946.65 = 43,133.14/x
  3. Step 3: Cross multiply
    78,949.72x = 108,946.65 × 43,133.14
  4. Step 4: Simplify right side
    78,949.72x = 4,699,211,106.98
  5. Step 5: Solve for x
    x = 4,699,211,106.98/78,949.72
  6. Step 6: Final answer
    x = 59,521.57

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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.