Home / 66,256.20-99,389.10-39,904.20

Finding the Fourth Proportional to 66,256.20, 99,389.10 and 39,904.20

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Solution

The fourth proportional to 66,256.20, 99,389.10 and 39,904.20 is: 59,859.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,256.20 : 99,389.10 = 39,904.20 : x
  2. Step 2: Convert to fraction form
    66,256.20/99,389.10 = 39,904.20/x
  3. Step 3: Cross multiply
    66,256.20x = 99,389.10 × 39,904.20
  4. Step 4: Simplify right side
    66,256.20x = 3,966,042,524.22
  5. Step 5: Solve for x
    x = 3,966,042,524.22/66,256.20
  6. Step 6: Final answer
    x = 59,859.19

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1.5x scale

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.