Home / 86,420.66-119,270.13-54,588.02

Finding the Fourth Proportional to 86,420.66, 119,270.13 and 54,588.02

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Solution

The fourth proportional to 86,420.66, 119,270.13 and 54,588.02 is: 75,337.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,420.66 : 119,270.13 = 54,588.02 : x
  2. Step 2: Convert to fraction form
    86,420.66/119,270.13 = 54,588.02/x
  3. Step 3: Cross multiply
    86,420.66x = 119,270.13 × 54,588.02
  4. Step 4: Simplify right side
    86,420.66x = 6,510,720,241.84
  5. Step 5: Solve for x
    x = 6,510,720,241.84/86,420.66
  6. Step 6: Final answer
    x = 75,337.54

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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.