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Finding the Fourth Proportional to 66,476.70, 99,715.05 and 63,852.30

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Solution

The fourth proportional to 66,476.70, 99,715.05 and 63,852.30 is: 95,778.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,476.70 : 99,715.05 = 63,852.30 : x
  2. Step 2: Convert to fraction form
    66,476.70/99,715.05 = 63,852.30/x
  3. Step 3: Cross multiply
    66,476.70x = 99,715.05 × 63,852.30
  4. Step 4: Simplify right side
    66,476.70x = 6,367,035,287.12
  5. Step 5: Solve for x
    x = 6,367,035,287.12/66,476.70
  6. Step 6: Final answer
    x = 95,778.45

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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.