Home / 71,022.48-106,550.40-21,102.96

Finding the Fourth Proportional to 71,022.48, 106,550.40 and 21,102.96

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Solution

The fourth proportional to 71,022.48, 106,550.40 and 21,102.96 is: 31,659.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,022.48 : 106,550.40 = 21,102.96 : x
  2. Step 2: Convert to fraction form
    71,022.48/106,550.40 = 21,102.96/x
  3. Step 3: Cross multiply
    71,022.48x = 106,550.40 × 21,102.96
  4. Step 4: Simplify right side
    71,022.48x = 2,248,528,829.18
  5. Step 5: Solve for x
    x = 2,248,528,829.18/71,022.48
  6. Step 6: Final answer
    x = 31,659.40

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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.