Home / 84,860.80-127,118.40-43,331.20

Finding the Fourth Proportional to 84,860.80, 127,118.40 and 43,331.20

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Solution

The fourth proportional to 84,860.80, 127,118.40 and 43,331.20 is: 64,908.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,860.80 : 127,118.40 = 43,331.20 : x
  2. Step 2: Convert to fraction form
    84,860.80/127,118.40 = 43,331.20/x
  3. Step 3: Cross multiply
    84,860.80x = 127,118.40 × 43,331.20
  4. Step 4: Simplify right side
    84,860.80x = 5,508,192,814.08
  5. Step 5: Solve for x
    x = 5,508,192,814.08/84,860.80
  6. Step 6: Final answer
    x = 64,908.57

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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.