Home / 85,847.13-128,747.46-35,917.01

Finding the Fourth Proportional to 85,847.13, 128,747.46 and 35,917.01

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Solution

The fourth proportional to 85,847.13, 128,747.46 and 35,917.01 is: 53,865.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,847.13 : 128,747.46 = 35,917.01 : x
  2. Step 2: Convert to fraction form
    85,847.13/128,747.46 = 35,917.01/x
  3. Step 3: Cross multiply
    85,847.13x = 128,747.46 × 35,917.01
  4. Step 4: Simplify right side
    85,847.13x = 4,624,223,808.29
  5. Step 5: Solve for x
    x = 4,624,223,808.29/85,847.13
  6. Step 6: Final answer
    x = 53,865.79

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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.