Home / 71,730.12-98,979.66-41,509.56

Finding the Fourth Proportional to 71,730.12, 98,979.66 and 41,509.56

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Solution

The fourth proportional to 71,730.12, 98,979.66 and 41,509.56 is: 57,278.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,730.12 : 98,979.66 = 41,509.56 : x
  2. Step 2: Convert to fraction form
    71,730.12/98,979.66 = 41,509.56/x
  3. Step 3: Cross multiply
    71,730.12x = 98,979.66 × 41,509.56
  4. Step 4: Simplify right side
    71,730.12x = 4,108,602,135.55
  5. Step 5: Solve for x
    x = 4,108,602,135.55/71,730.12
  6. Step 6: Final answer
    x = 57,278.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.