Home / 45,479.35-68,217.49-13,888.14

Finding the Fourth Proportional to 45,479.35, 68,217.49 and 13,888.14

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Solution

The fourth proportional to 45,479.35, 68,217.49 and 13,888.14 is: 20,831.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,479.35 : 68,217.49 = 13,888.14 : x
  2. Step 2: Convert to fraction form
    45,479.35/68,217.49 = 13,888.14/x
  3. Step 3: Cross multiply
    45,479.35x = 68,217.49 × 13,888.14
  4. Step 4: Simplify right side
    45,479.35x = 947,413,909.04
  5. Step 5: Solve for x
    x = 947,413,909.04/45,479.35
  6. Step 6: Final answer
    x = 20,831.74

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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.