Home / 85,742.09-118,318.37-47,499.06

Finding the Fourth Proportional to 85,742.09, 118,318.37 and 47,499.06

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Solution

The fourth proportional to 85,742.09, 118,318.37 and 47,499.06 is: 65,545.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,742.09 : 118,318.37 = 47,499.06 : x
  2. Step 2: Convert to fraction form
    85,742.09/118,318.37 = 47,499.06/x
  3. Step 3: Cross multiply
    85,742.09x = 118,318.37 × 47,499.06
  4. Step 4: Simplify right side
    85,742.09x = 5,620,011,118.24
  5. Step 5: Solve for x
    x = 5,620,011,118.24/85,742.09
  6. Step 6: Final answer
    x = 65,545.54

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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.