Home / 86,353.28-129,421.07-46,272.86

Finding the Fourth Proportional to 86,353.28, 129,421.07 and 46,272.86

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Solution

The fourth proportional to 86,353.28, 129,421.07 and 46,272.86 is: 69,350.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,353.28 : 129,421.07 = 46,272.86 : x
  2. Step 2: Convert to fraction form
    86,353.28/129,421.07 = 46,272.86/x
  3. Step 3: Cross multiply
    86,353.28x = 129,421.07 × 46,272.86
  4. Step 4: Simplify right side
    86,353.28x = 5,988,682,174.69
  5. Step 5: Solve for x
    x = 5,988,682,174.69/86,353.28
  6. Step 6: Final answer
    x = 69,350.96

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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.