Home / 47,106.48-70,661.88-20,811.36

Finding the Fourth Proportional to 47,106.48, 70,661.88 and 20,811.36

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Solution

The fourth proportional to 47,106.48, 70,661.88 and 20,811.36 is: 31,217.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,106.48 : 70,661.88 = 20,811.36 : x
  2. Step 2: Convert to fraction form
    47,106.48/70,661.88 = 20,811.36/x
  3. Step 3: Cross multiply
    47,106.48x = 70,661.88 × 20,811.36
  4. Step 4: Simplify right side
    47,106.48x = 1,470,569,822.96
  5. Step 5: Solve for x
    x = 1,470,569,822.96/47,106.48
  6. Step 6: Final answer
    x = 31,217.99

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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.