Home / 97,860.80-135,103.92-64,424

Finding the Fourth Proportional to 97,860.80, 135,103.92 and 64,424

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Solution

The fourth proportional to 97,860.80, 135,103.92 and 64,424 is: 88,942.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,860.80 : 135,103.92 = 64,424 : x
  2. Step 2: Convert to fraction form
    97,860.80/135,103.92 = 64,424/x
  3. Step 3: Cross multiply
    97,860.80x = 135,103.92 × 64,424
  4. Step 4: Simplify right side
    97,860.80x = 8,703,934,942.08
  5. Step 5: Solve for x
    x = 8,703,934,942.08/97,860.80
  6. Step 6: Final answer
    x = 88,942.00

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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.