Home / 66,278.19-91,467.11-37,983.94

Finding the Fourth Proportional to 66,278.19, 91,467.11 and 37,983.94

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Solution

The fourth proportional to 66,278.19, 91,467.11 and 37,983.94 is: 52,419.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,278.19 : 91,467.11 = 37,983.94 : x
  2. Step 2: Convert to fraction form
    66,278.19/91,467.11 = 37,983.94/x
  3. Step 3: Cross multiply
    66,278.19x = 91,467.11 × 37,983.94
  4. Step 4: Simplify right side
    66,278.19x = 3,474,281,218.21
  5. Step 5: Solve for x
    x = 3,474,281,218.21/66,278.19
  6. Step 6: Final answer
    x = 52,419.68

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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.