Home / 45,570.39-68,355.18-14,405.65

Finding the Fourth Proportional to 45,570.39, 68,355.18 and 14,405.65

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Solution

The fourth proportional to 45,570.39, 68,355.18 and 14,405.65 is: 21,608.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,570.39 : 68,355.18 = 14,405.65 : x
  2. Step 2: Convert to fraction form
    45,570.39/68,355.18 = 14,405.65/x
  3. Step 3: Cross multiply
    45,570.39x = 68,355.18 × 14,405.65
  4. Step 4: Simplify right side
    45,570.39x = 984,700,726.74
  5. Step 5: Solve for x
    x = 984,700,726.74/45,570.39
  6. Step 6: Final answer
    x = 21,608.35

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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.