Home / 66,191.10-91,336.72-39,329.94

Finding the Fourth Proportional to 66,191.10, 91,336.72 and 39,329.94

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Solution

The fourth proportional to 66,191.10, 91,336.72 and 39,329.94 is: 54,271.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,191.10 : 91,336.72 = 39,329.94 : x
  2. Step 2: Convert to fraction form
    66,191.10/91,336.72 = 39,329.94/x
  3. Step 3: Cross multiply
    66,191.10x = 91,336.72 × 39,329.94
  4. Step 4: Simplify right side
    66,191.10x = 3,592,267,717.40
  5. Step 5: Solve for x
    x = 3,592,267,717.40/66,191.10
  6. Step 6: Final answer
    x = 54,271.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.