Home / 66,815.35-99,550.30-65,853.07

Finding the Fourth Proportional to 66,815.35, 99,550.30 and 65,853.07

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Solution

The fourth proportional to 66,815.35, 99,550.30 and 65,853.07 is: 98,116.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,815.35 : 99,550.30 = 65,853.07 : x
  2. Step 2: Convert to fraction form
    66,815.35/99,550.30 = 65,853.07/x
  3. Step 3: Cross multiply
    66,815.35x = 99,550.30 × 65,853.07
  4. Step 4: Simplify right side
    66,815.35x = 6,555,692,545.16
  5. Step 5: Solve for x
    x = 6,555,692,545.16/66,815.35
  6. Step 6: Final answer
    x = 98,116.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.