Home / 66,084.17-99,113.61-18,698.81

Finding the Fourth Proportional to 66,084.17, 99,113.61 and 18,698.81

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Solution

The fourth proportional to 66,084.17, 99,113.61 and 18,698.81 is: 28,044.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,084.17 : 99,113.61 = 18,698.81 : x
  2. Step 2: Convert to fraction form
    66,084.17/99,113.61 = 18,698.81/x
  3. Step 3: Cross multiply
    66,084.17x = 99,113.61 × 18,698.81
  4. Step 4: Simplify right side
    66,084.17x = 1,853,306,561.80
  5. Step 5: Solve for x
    x = 1,853,306,561.80/66,084.17
  6. Step 6: Final answer
    x = 28,044.64

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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.