Home / 86,421.16-119,270.82-54,588.52

Finding the Fourth Proportional to 86,421.16, 119,270.82 and 54,588.52

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Solution

The fourth proportional to 86,421.16, 119,270.82 and 54,588.52 is: 75,338.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,421.16 : 119,270.82 = 54,588.52 : x
  2. Step 2: Convert to fraction form
    86,421.16/119,270.82 = 54,588.52/x
  3. Step 3: Cross multiply
    86,421.16x = 119,270.82 × 54,588.52
  4. Step 4: Simplify right side
    86,421.16x = 6,510,817,542.99
  5. Step 5: Solve for x
    x = 6,510,817,542.99/86,421.16
  6. Step 6: Final answer
    x = 75,338.23

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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.