Home / 52,101.42-78,155.73-20,936.67

Finding the Fourth Proportional to 52,101.42, 78,155.73 and 20,936.67

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Solution

The fourth proportional to 52,101.42, 78,155.73 and 20,936.67 is: 31,406.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,101.42 : 78,155.73 = 20,936.67 : x
  2. Step 2: Convert to fraction form
    52,101.42/78,155.73 = 20,936.67/x
  3. Step 3: Cross multiply
    52,101.42x = 78,155.73 × 20,936.67
  4. Step 4: Simplify right side
    52,101.42x = 1,636,320,727.62
  5. Step 5: Solve for x
    x = 1,636,320,727.62/52,101.42
  6. Step 6: Final answer
    x = 31,406.45

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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.