Home / 61,000.23-91,464.18-18,867.84

Finding the Fourth Proportional to 61,000.23, 91,464.18 and 18,867.84

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Solution

The fourth proportional to 61,000.23, 91,464.18 and 18,867.84 is: 28,290.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,000.23 : 91,464.18 = 18,867.84 : x
  2. Step 2: Convert to fraction form
    61,000.23/91,464.18 = 18,867.84/x
  3. Step 3: Cross multiply
    61,000.23x = 91,464.18 × 18,867.84
  4. Step 4: Simplify right side
    61,000.23x = 1,725,731,513.97
  5. Step 5: Solve for x
    x = 1,725,731,513.97/61,000.23
  6. Step 6: Final answer
    x = 28,290.57

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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.