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Finding the Fourth Proportional to 66,547.50, 91,834.04 and 36,331.64

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Solution

The fourth proportional to 66,547.50, 91,834.04 and 36,331.64 is: 50,136.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,547.50 : 91,834.04 = 36,331.64 : x
  2. Step 2: Convert to fraction form
    66,547.50/91,834.04 = 36,331.64/x
  3. Step 3: Cross multiply
    66,547.50x = 91,834.04 × 36,331.64
  4. Step 4: Simplify right side
    66,547.50x = 3,336,481,281.03
  5. Step 5: Solve for x
    x = 3,336,481,281.03/66,547.50
  6. Step 6: Final answer
    x = 50,136.84

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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.