Home / 52,311.87-72,190.80-31,086.99

Finding the Fourth Proportional to 52,311.87, 72,190.80 and 31,086.99

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Solution

The fourth proportional to 52,311.87, 72,190.80 and 31,086.99 is: 42,900.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,311.87 : 72,190.80 = 31,086.99 : x
  2. Step 2: Convert to fraction form
    52,311.87/72,190.80 = 31,086.99/x
  3. Step 3: Cross multiply
    52,311.87x = 72,190.80 × 31,086.99
  4. Step 4: Simplify right side
    52,311.87x = 2,244,194,677.69
  5. Step 5: Solve for x
    x = 2,244,194,677.69/52,311.87
  6. Step 6: Final answer
    x = 42,900.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.