Home / 66,207.07-99,310.65-19,492.75

Finding the Fourth Proportional to 66,207.07, 99,310.65 and 19,492.75

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Solution

The fourth proportional to 66,207.07, 99,310.65 and 19,492.75 is: 29,239.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,207.07 : 99,310.65 = 19,492.75 : x
  2. Step 2: Convert to fraction form
    66,207.07/99,310.65 = 19,492.75/x
  3. Step 3: Cross multiply
    66,207.07x = 99,310.65 × 19,492.75
  4. Step 4: Simplify right side
    66,207.07x = 1,935,837,078.77
  5. Step 5: Solve for x
    x = 1,935,837,078.77/66,207.07
  6. Step 6: Final answer
    x = 29,239.13

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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.