Home / 51,975.68-78,008.16-20,832.32

Finding the Fourth Proportional to 51,975.68, 78,008.16 and 20,832.32

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Solution

The fourth proportional to 51,975.68, 78,008.16 and 20,832.32 is: 31,266.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,975.68 : 78,008.16 = 20,832.32 : x
  2. Step 2: Convert to fraction form
    51,975.68/78,008.16 = 20,832.32/x
  3. Step 3: Cross multiply
    51,975.68x = 78,008.16 × 20,832.32
  4. Step 4: Simplify right side
    51,975.68x = 1,625,090,951.73
  5. Step 5: Solve for x
    x = 1,625,090,951.73/51,975.68
  6. Step 6: Final answer
    x = 31,266.37

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1.5x scale

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.