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Finding the Fourth Proportional to 98,089.39, 135,367.80 and 57,804.85

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Solution

The fourth proportional to 98,089.39, 135,367.80 and 57,804.85 is: 79,773.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,089.39 : 135,367.80 = 57,804.85 : x
  2. Step 2: Convert to fraction form
    98,089.39/135,367.80 = 57,804.85/x
  3. Step 3: Cross multiply
    98,089.39x = 135,367.80 × 57,804.85
  4. Step 4: Simplify right side
    98,089.39x = 7,824,914,889.98
  5. Step 5: Solve for x
    x = 7,824,914,889.98/98,089.39
  6. Step 6: Final answer
    x = 79,773.31

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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.