Home / 70,808.02-106,175.46-20,881.77

Finding the Fourth Proportional to 70,808.02, 106,175.46 and 20,881.77

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Solution

The fourth proportional to 70,808.02, 106,175.46 and 20,881.77 is: 31,311.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,808.02 : 106,175.46 = 20,881.77 : x
  2. Step 2: Convert to fraction form
    70,808.02/106,175.46 = 20,881.77/x
  3. Step 3: Cross multiply
    70,808.02x = 106,175.46 × 20,881.77
  4. Step 4: Simplify right side
    70,808.02x = 2,217,131,535.36
  5. Step 5: Solve for x
    x = 2,217,131,535.36/70,808.02
  6. Step 6: Final answer
    x = 31,311.87

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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.