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Finding the Fourth Proportional to 79,802.50, 110,127.78 and 43,991.72

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Solution

The fourth proportional to 79,802.50, 110,127.78 and 43,991.72 is: 60,708.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,802.50 : 110,127.78 = 43,991.72 : x
  2. Step 2: Convert to fraction form
    79,802.50/110,127.78 = 43,991.72/x
  3. Step 3: Cross multiply
    79,802.50x = 110,127.78 × 43,991.72
  4. Step 4: Simplify right side
    79,802.50x = 4,844,710,737.30
  5. Step 5: Solve for x
    x = 4,844,710,737.30/79,802.50
  6. Step 6: Final answer
    x = 60,708.76

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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.