Home / 66,121.40-99,026.58-51,211.64

Finding the Fourth Proportional to 66,121.40, 99,026.58 and 51,211.64

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Solution

The fourth proportional to 66,121.40, 99,026.58 and 51,211.64 is: 76,697.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,121.40 : 99,026.58 = 51,211.64 : x
  2. Step 2: Convert to fraction form
    66,121.40/99,026.58 = 51,211.64/x
  3. Step 3: Cross multiply
    66,121.40x = 99,026.58 × 51,211.64
  4. Step 4: Simplify right side
    66,121.40x = 5,071,313,565.39
  5. Step 5: Solve for x
    x = 5,071,313,565.39/66,121.40
  6. Step 6: Final answer
    x = 76,697.01

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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.