Home / 83,650.12-115,437.24-45,409.64

Finding the Fourth Proportional to 83,650.12, 115,437.24 and 45,409.64

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Solution

The fourth proportional to 83,650.12, 115,437.24 and 45,409.64 is: 62,665.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,650.12 : 115,437.24 = 45,409.64 : x
  2. Step 2: Convert to fraction form
    83,650.12/115,437.24 = 45,409.64/x
  3. Step 3: Cross multiply
    83,650.12x = 115,437.24 × 45,409.64
  4. Step 4: Simplify right side
    83,650.12x = 5,241,963,510.99
  5. Step 5: Solve for x
    x = 5,241,963,510.99/83,650.12
  6. Step 6: Final answer
    x = 62,665.34

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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.