Home / 45,645.12-68,454.72-14,479.56

Finding the Fourth Proportional to 45,645.12, 68,454.72 and 14,479.56

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Solution

The fourth proportional to 45,645.12, 68,454.72 and 14,479.56 is: 21,715.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,645.12 : 68,454.72 = 14,479.56 : x
  2. Step 2: Convert to fraction form
    45,645.12/68,454.72 = 14,479.56/x
  3. Step 3: Cross multiply
    45,645.12x = 68,454.72 × 14,479.56
  4. Step 4: Simplify right side
    45,645.12x = 991,194,225.52
  5. Step 5: Solve for x
    x = 991,194,225.52/45,645.12
  6. Step 6: Final answer
    x = 21,715.23

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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.