Home / 51,975.05-77,925.12-31,943.15

Finding the Fourth Proportional to 51,975.05, 77,925.12 and 31,943.15

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Solution

The fourth proportional to 51,975.05, 77,925.12 and 31,943.15 is: 47,891.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,975.05 : 77,925.12 = 31,943.15 : x
  2. Step 2: Convert to fraction form
    51,975.05/77,925.12 = 31,943.15/x
  3. Step 3: Cross multiply
    51,975.05x = 77,925.12 × 31,943.15
  4. Step 4: Simplify right side
    51,975.05x = 2,489,173,407.30
  5. Step 5: Solve for x
    x = 2,489,173,407.30/51,975.05
  6. Step 6: Final answer
    x = 47,891.70

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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.