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Finding the Fourth Proportional to 97,891.71, 135,086.04 and 55,450.59

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Solution

The fourth proportional to 97,891.71, 135,086.04 and 55,450.59 is: 76,519.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,891.71 : 135,086.04 = 55,450.59 : x
  2. Step 2: Convert to fraction form
    97,891.71/135,086.04 = 55,450.59/x
  3. Step 3: Cross multiply
    97,891.71x = 135,086.04 × 55,450.59
  4. Step 4: Simplify right side
    97,891.71x = 7,490,600,618.76
  5. Step 5: Solve for x
    x = 7,490,600,618.76/97,891.71
  6. Step 6: Final answer
    x = 76,519.25

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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.