Home / 68,453.42-94,949-66,632.72

Finding the Fourth Proportional to 68,453.42, 94,949 and 66,632.72

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Solution

The fourth proportional to 68,453.42, 94,949 and 66,632.72 is: 92,423.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,453.42 : 94,949 = 66,632.72 : x
  2. Step 2: Convert to fraction form
    68,453.42/94,949 = 66,632.72/x
  3. Step 3: Cross multiply
    68,453.42x = 94,949 × 66,632.72
  4. Step 4: Simplify right side
    68,453.42x = 6,326,710,131.28
  5. Step 5: Solve for x
    x = 6,326,710,131.28/68,453.42
  6. Step 6: Final answer
    x = 92,423.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.