Home / 47,087.68-70,641.24-13,808.80

Finding the Fourth Proportional to 47,087.68, 70,641.24 and 13,808.80

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Solution

The fourth proportional to 47,087.68, 70,641.24 and 13,808.80 is: 20,716.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,087.68 : 70,641.24 = 13,808.80 : x
  2. Step 2: Convert to fraction form
    47,087.68/70,641.24 = 13,808.80/x
  3. Step 3: Cross multiply
    47,087.68x = 70,641.24 × 13,808.80
  4. Step 4: Simplify right side
    47,087.68x = 975,470,754.91
  5. Step 5: Solve for x
    x = 975,470,754.91/47,087.68
  6. Step 6: Final answer
    x = 20,716.05

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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.