Home / 81,352.45-112,247.05-47,340.35

Finding the Fourth Proportional to 81,352.45, 112,247.05 and 47,340.35

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Solution

The fourth proportional to 81,352.45, 112,247.05 and 47,340.35 is: 65,318.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,352.45 : 112,247.05 = 47,340.35 : x
  2. Step 2: Convert to fraction form
    81,352.45/112,247.05 = 47,340.35/x
  3. Step 3: Cross multiply
    81,352.45x = 112,247.05 × 47,340.35
  4. Step 4: Simplify right side
    81,352.45x = 5,313,813,835.53
  5. Step 5: Solve for x
    x = 5,313,813,835.53/81,352.45
  6. Step 6: Final answer
    x = 65,318.43

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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.