Home / 52,172.52-78,264.96-18,908.28

Finding the Fourth Proportional to 52,172.52, 78,264.96 and 18,908.28

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Solution

The fourth proportional to 52,172.52, 78,264.96 and 18,908.28 is: 28,364.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,172.52 : 78,264.96 = 18,908.28 : x
  2. Step 2: Convert to fraction form
    52,172.52/78,264.96 = 18,908.28/x
  3. Step 3: Cross multiply
    52,172.52x = 78,264.96 × 18,908.28
  4. Step 4: Simplify right side
    52,172.52x = 1,479,855,777.87
  5. Step 5: Solve for x
    x = 1,479,855,777.87/52,172.52
  6. Step 6: Final answer
    x = 28,364.66

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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.