Home / 72,924.10-109,342.39-28,497.93

Finding the Fourth Proportional to 72,924.10, 109,342.39 and 28,497.93

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Solution

The fourth proportional to 72,924.10, 109,342.39 and 28,497.93 is: 42,729.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,924.10 : 109,342.39 = 28,497.93 : x
  2. Step 2: Convert to fraction form
    72,924.10/109,342.39 = 28,497.93/x
  3. Step 3: Cross multiply
    72,924.10x = 109,342.39 × 28,497.93
  4. Step 4: Simplify right side
    72,924.10x = 3,116,031,348.41
  5. Step 5: Solve for x
    x = 3,116,031,348.41/72,924.10
  6. Step 6: Final answer
    x = 42,729.79

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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.