Home / 66,254.09-99,381.20-28,812.65

Finding the Fourth Proportional to 66,254.09, 99,381.20 and 28,812.65

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Solution

The fourth proportional to 66,254.09, 99,381.20 and 28,812.65 is: 43,219.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,254.09 : 99,381.20 = 28,812.65 : x
  2. Step 2: Convert to fraction form
    66,254.09/99,381.20 = 28,812.65/x
  3. Step 3: Cross multiply
    66,254.09x = 99,381.20 × 28,812.65
  4. Step 4: Simplify right side
    66,254.09x = 2,863,435,091.21
  5. Step 5: Solve for x
    x = 2,863,435,091.21/66,254.09
  6. Step 6: Final answer
    x = 43,219.00

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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.