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Finding the Fourth Proportional to 52,063.77, 78,127.79 and 20,468.30

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Solution

The fourth proportional to 52,063.77, 78,127.79 and 20,468.30 is: 30,715.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,063.77 : 78,127.79 = 20,468.30 : x
  2. Step 2: Convert to fraction form
    52,063.77/78,127.79 = 20,468.30/x
  3. Step 3: Cross multiply
    52,063.77x = 78,127.79 × 20,468.30
  4. Step 4: Simplify right side
    52,063.77x = 1,599,143,044.06
  5. Step 5: Solve for x
    x = 1,599,143,044.06/52,063.77
  6. Step 6: Final answer
    x = 30,715.08

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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.