Home / 66,276.54-99,401.85-19,516.86

Finding the Fourth Proportional to 66,276.54, 99,401.85 and 19,516.86

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Solution

The fourth proportional to 66,276.54, 99,401.85 and 19,516.86 is: 29,271.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,276.54 : 99,401.85 = 19,516.86 : x
  2. Step 2: Convert to fraction form
    66,276.54/99,401.85 = 19,516.86/x
  3. Step 3: Cross multiply
    66,276.54x = 99,401.85 × 19,516.86
  4. Step 4: Simplify right side
    66,276.54x = 1,940,011,990.19
  5. Step 5: Solve for x
    x = 1,940,011,990.19/66,276.54
  6. Step 6: Final answer
    x = 29,271.47

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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.