Home / 72,957.24-109,389.69-30,815.64

Finding the Fourth Proportional to 72,957.24, 109,389.69 and 30,815.64

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Solution

The fourth proportional to 72,957.24, 109,389.69 and 30,815.64 is: 46,203.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,957.24 : 109,389.69 = 30,815.64 : x
  2. Step 2: Convert to fraction form
    72,957.24/109,389.69 = 30,815.64/x
  3. Step 3: Cross multiply
    72,957.24x = 109,389.69 × 30,815.64
  4. Step 4: Simplify right side
    72,957.24x = 3,370,913,306.75
  5. Step 5: Solve for x
    x = 3,370,913,306.75/72,957.24
  6. Step 6: Final answer
    x = 46,203.96

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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.