Home / 52,143.09-78,226.02-18,859.68

Finding the Fourth Proportional to 52,143.09, 78,226.02 and 18,859.68

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Solution

The fourth proportional to 52,143.09, 78,226.02 and 18,859.68 is: 28,293.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,143.09 : 78,226.02 = 18,859.68 : x
  2. Step 2: Convert to fraction form
    52,143.09/78,226.02 = 18,859.68/x
  3. Step 3: Cross multiply
    52,143.09x = 78,226.02 × 18,859.68
  4. Step 4: Simplify right side
    52,143.09x = 1,475,317,704.87
  5. Step 5: Solve for x
    x = 1,475,317,704.87/52,143.09
  6. Step 6: Final answer
    x = 28,293.64

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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.