Home / 71,326.85-106,990.04-21,406.75

Finding the Fourth Proportional to 71,326.85, 106,990.04 and 21,406.75

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Solution

The fourth proportional to 71,326.85, 106,990.04 and 21,406.75 is: 32,110.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,326.85 : 106,990.04 = 21,406.75 : x
  2. Step 2: Convert to fraction form
    71,326.85/106,990.04 = 21,406.75/x
  3. Step 3: Cross multiply
    71,326.85x = 106,990.04 × 21,406.75
  4. Step 4: Simplify right side
    71,326.85x = 2,290,308,824.81
  5. Step 5: Solve for x
    x = 2,290,308,824.81/71,326.85
  6. Step 6: Final answer
    x = 32,110.05

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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.