Home / 81,027.60-111,870.12-50,854.32

Finding the Fourth Proportional to 81,027.60, 111,870.12 and 50,854.32

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Solution

The fourth proportional to 81,027.60, 111,870.12 and 50,854.32 is: 70,211.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,027.60 : 111,870.12 = 50,854.32 : x
  2. Step 2: Convert to fraction form
    81,027.60/111,870.12 = 50,854.32/x
  3. Step 3: Cross multiply
    81,027.60x = 111,870.12 × 50,854.32
  4. Step 4: Simplify right side
    81,027.60x = 5,689,078,880.92
  5. Step 5: Solve for x
    x = 5,689,078,880.92/81,027.60
  6. Step 6: Final answer
    x = 70,211.62

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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.