Home / 216,421.29-324,631.86-58,649.75

Finding the Fourth Proportional to 216,421.29, 324,631.86 and 58,649.75

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Solution

The fourth proportional to 216,421.29, 324,631.86 and 58,649.75 is: 87,974.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,421.29 : 324,631.86 = 58,649.75 : x
  2. Step 2: Convert to fraction form
    216,421.29/324,631.86 = 58,649.75/x
  3. Step 3: Cross multiply
    216,421.29x = 324,631.86 × 58,649.75
  4. Step 4: Simplify right side
    216,421.29x = 19,039,577,431.04
  5. Step 5: Solve for x
    x = 19,039,577,431.04/216,421.29
  6. Step 6: Final answer
    x = 87,974.60

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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.