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Finding the Fourth Proportional to 66,012.76, 91,092.90 and 37,332.28

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Solution

The fourth proportional to 66,012.76, 91,092.90 and 37,332.28 is: 51,515.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,012.76 : 91,092.90 = 37,332.28 : x
  2. Step 2: Convert to fraction form
    66,012.76/91,092.90 = 37,332.28/x
  3. Step 3: Cross multiply
    66,012.76x = 91,092.90 × 37,332.28
  4. Step 4: Simplify right side
    66,012.76x = 3,400,705,648.81
  5. Step 5: Solve for x
    x = 3,400,705,648.81/66,012.76
  6. Step 6: Final answer
    x = 51,515.88

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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.