Home / 85,519.60-128,267.32-29,358.72

Finding the Fourth Proportional to 85,519.60, 128,267.32 and 29,358.72

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Solution

The fourth proportional to 85,519.60, 128,267.32 and 29,358.72 is: 44,033.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,519.60 : 128,267.32 = 29,358.72 : x
  2. Step 2: Convert to fraction form
    85,519.60/128,267.32 = 29,358.72/x
  3. Step 3: Cross multiply
    85,519.60x = 128,267.32 × 29,358.72
  4. Step 4: Simplify right side
    85,519.60x = 3,765,764,333.03
  5. Step 5: Solve for x
    x = 3,765,764,333.03/85,519.60
  6. Step 6: Final answer
    x = 44,033.93

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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.