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Finding the Fourth Proportional to 66,523.84, 91,068.06 and 66,049.08

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Solution

The fourth proportional to 66,523.84, 91,068.06 and 66,049.08 is: 90,418.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,523.84 : 91,068.06 = 66,049.08 : x
  2. Step 2: Convert to fraction form
    66,523.84/91,068.06 = 66,049.08/x
  3. Step 3: Cross multiply
    66,523.84x = 91,068.06 × 66,049.08
  4. Step 4: Simplify right side
    66,523.84x = 6,014,961,580.38
  5. Step 5: Solve for x
    x = 6,014,961,580.38/66,523.84
  6. Step 6: Final answer
    x = 90,418.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.