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Finding the Fourth Proportional to 79,798.90, 110,123.25 and 43,990.20

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Solution

The fourth proportional to 79,798.90, 110,123.25 and 43,990.20 is: 60,706.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,798.90 : 110,123.25 = 43,990.20 : x
  2. Step 2: Convert to fraction form
    79,798.90/110,123.25 = 43,990.20/x
  3. Step 3: Cross multiply
    79,798.90x = 110,123.25 × 43,990.20
  4. Step 4: Simplify right side
    79,798.90x = 4,844,343,363.55
  5. Step 5: Solve for x
    x = 4,844,343,363.55/79,798.90
  6. Step 6: Final answer
    x = 60,706.89

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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.