Home / 52,263.57-78,341.72-20,660.79

Finding the Fourth Proportional to 52,263.57, 78,341.72 and 20,660.79

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Solution

The fourth proportional to 52,263.57, 78,341.72 and 20,660.79 is: 30,969.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,263.57 : 78,341.72 = 20,660.79 : x
  2. Step 2: Convert to fraction form
    52,263.57/78,341.72 = 20,660.79/x
  3. Step 3: Cross multiply
    52,263.57x = 78,341.72 × 20,660.79
  4. Step 4: Simplify right side
    52,263.57x = 1,618,601,721.85
  5. Step 5: Solve for x
    x = 1,618,601,721.85/52,263.57
  6. Step 6: Final answer
    x = 30,969.98

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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.