Home / 69,740.16-104,549.76-28,160.16

Finding the Fourth Proportional to 69,740.16, 104,549.76 and 28,160.16

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Solution

The fourth proportional to 69,740.16, 104,549.76 and 28,160.16 is: 42,215.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,740.16 : 104,549.76 = 28,160.16 : x
  2. Step 2: Convert to fraction form
    69,740.16/104,549.76 = 28,160.16/x
  3. Step 3: Cross multiply
    69,740.16x = 104,549.76 × 28,160.16
  4. Step 4: Simplify right side
    69,740.16x = 2,944,137,969.56
  5. Step 5: Solve for x
    x = 2,944,137,969.56/69,740.16
  6. Step 6: Final answer
    x = 42,215.82

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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.