Home / 52,777.71-72,838.43-30,120.10

Finding the Fourth Proportional to 52,777.71, 72,838.43 and 30,120.10

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Solution

The fourth proportional to 52,777.71, 72,838.43 and 30,120.10 is: 41,568.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,777.71 : 72,838.43 = 30,120.10 : x
  2. Step 2: Convert to fraction form
    52,777.71/72,838.43 = 30,120.10/x
  3. Step 3: Cross multiply
    52,777.71x = 72,838.43 × 30,120.10
  4. Step 4: Simplify right side
    52,777.71x = 2,193,901,070.13
  5. Step 5: Solve for x
    x = 2,193,901,070.13/52,777.71
  6. Step 6: Final answer
    x = 41,568.71

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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.