Home / 52,272.84-78,384.55-20,266.91

Finding the Fourth Proportional to 52,272.84, 78,384.55 and 20,266.91

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Solution

The fourth proportional to 52,272.84, 78,384.55 and 20,266.91 is: 30,390.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,272.84 : 78,384.55 = 20,266.91 : x
  2. Step 2: Convert to fraction form
    52,272.84/78,384.55 = 20,266.91/x
  3. Step 3: Cross multiply
    52,272.84x = 78,384.55 × 20,266.91
  4. Step 4: Simplify right side
    52,272.84x = 1,588,612,620.24
  5. Step 5: Solve for x
    x = 1,588,612,620.24/52,272.84
  6. Step 6: Final answer
    x = 30,390.78

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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.