Home / 66,785.28-91,977.84-51,622.08

Finding the Fourth Proportional to 66,785.28, 91,977.84 and 51,622.08

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Solution

The fourth proportional to 66,785.28, 91,977.84 and 51,622.08 is: 71,094.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,785.28 : 91,977.84 = 51,622.08 : x
  2. Step 2: Convert to fraction form
    66,785.28/91,977.84 = 51,622.08/x
  3. Step 3: Cross multiply
    66,785.28x = 91,977.84 × 51,622.08
  4. Step 4: Simplify right side
    66,785.28x = 4,748,087,414.71
  5. Step 5: Solve for x
    x = 4,748,087,414.71/66,785.28
  6. Step 6: Final answer
    x = 71,094.82

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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.