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Finding the Fourth Proportional to 66,316.65, 99,476.01 and 36,921.30

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Solution

The fourth proportional to 66,316.65, 99,476.01 and 36,921.30 is: 55,382.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,316.65 : 99,476.01 = 36,921.30 : x
  2. Step 2: Convert to fraction form
    66,316.65/99,476.01 = 36,921.30/x
  3. Step 3: Cross multiply
    66,316.65x = 99,476.01 × 36,921.30
  4. Step 4: Simplify right side
    66,316.65x = 3,672,783,608.01
  5. Step 5: Solve for x
    x = 3,672,783,608.01/66,316.65
  6. Step 6: Final answer
    x = 55,382.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.