Home / 75,737.32-113,605.98-47,977

Finding the Fourth Proportional to 75,737.32, 113,605.98 and 47,977

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Solution

The fourth proportional to 75,737.32, 113,605.98 and 47,977 is: 71,965.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,737.32 : 113,605.98 = 47,977 : x
  2. Step 2: Convert to fraction form
    75,737.32/113,605.98 = 47,977/x
  3. Step 3: Cross multiply
    75,737.32x = 113,605.98 × 47,977
  4. Step 4: Simplify right side
    75,737.32x = 5,450,474,102.46
  5. Step 5: Solve for x
    x = 5,450,474,102.46/75,737.32
  6. Step 6: Final answer
    x = 71,965.50

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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.