Home / 86,834.22-130,150.80-39,988.68

Finding the Fourth Proportional to 86,834.22, 130,150.80 and 39,988.68

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Solution

The fourth proportional to 86,834.22, 130,150.80 and 39,988.68 is: 59,936.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,834.22 : 130,150.80 = 39,988.68 : x
  2. Step 2: Convert to fraction form
    86,834.22/130,150.80 = 39,988.68/x
  3. Step 3: Cross multiply
    86,834.22x = 130,150.80 × 39,988.68
  4. Step 4: Simplify right side
    86,834.22x = 5,204,558,692.94
  5. Step 5: Solve for x
    x = 5,204,558,692.94/86,834.22
  6. Step 6: Final answer
    x = 59,936.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.