Home / 66,930.84-92,357.72-40,072.65

Finding the Fourth Proportional to 66,930.84, 92,357.72 and 40,072.65

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Solution

The fourth proportional to 66,930.84, 92,357.72 and 40,072.65 is: 55,296.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,930.84 : 92,357.72 = 40,072.65 : x
  2. Step 2: Convert to fraction form
    66,930.84/92,357.72 = 40,072.65/x
  3. Step 3: Cross multiply
    66,930.84x = 92,357.72 × 40,072.65
  4. Step 4: Simplify right side
    66,930.84x = 3,701,018,387.99
  5. Step 5: Solve for x
    x = 3,701,018,387.99/66,930.84
  6. Step 6: Final answer
    x = 55,296.16

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1.5x scale

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.