Home / 98,212.82-135,549.05-57,930.98

Finding the Fourth Proportional to 98,212.82, 135,549.05 and 57,930.98

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Solution

The fourth proportional to 98,212.82, 135,549.05 and 57,930.98 is: 79,953.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,212.82 : 135,549.05 = 57,930.98 : x
  2. Step 2: Convert to fraction form
    98,212.82/135,549.05 = 57,930.98/x
  3. Step 3: Cross multiply
    98,212.82x = 135,549.05 × 57,930.98
  4. Step 4: Simplify right side
    98,212.82x = 7,852,488,337.17
  5. Step 5: Solve for x
    x = 7,852,488,337.17/98,212.82
  6. Step 6: Final answer
    x = 79,953.81

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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.