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Finding the Fourth Proportional to 61,242.22, 91,863.33 and 19,689.22

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Solution

The fourth proportional to 61,242.22, 91,863.33 and 19,689.22 is: 29,533.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,242.22 : 91,863.33 = 19,689.22 : x
  2. Step 2: Convert to fraction form
    61,242.22/91,863.33 = 19,689.22/x
  3. Step 3: Cross multiply
    61,242.22x = 91,863.33 × 19,689.22
  4. Step 4: Simplify right side
    61,242.22x = 1,808,717,314.30
  5. Step 5: Solve for x
    x = 1,808,717,314.30/61,242.22
  6. Step 6: Final answer
    x = 29,533.83

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1.5x scale

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.