Home / 71,280.52-106,707.75-43,115.34

Finding the Fourth Proportional to 71,280.52, 106,707.75 and 43,115.34

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Solution

The fourth proportional to 71,280.52, 106,707.75 and 43,115.34 is: 64,544.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,280.52 : 106,707.75 = 43,115.34 : x
  2. Step 2: Convert to fraction form
    71,280.52/106,707.75 = 43,115.34/x
  3. Step 3: Cross multiply
    71,280.52x = 106,707.75 × 43,115.34
  4. Step 4: Simplify right side
    71,280.52x = 4,600,740,921.89
  5. Step 5: Solve for x
    x = 4,600,740,921.89/71,280.52
  6. Step 6: Final answer
    x = 64,544.15

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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.