Home / 85,448.18-128,171.73-34,847.01

Finding the Fourth Proportional to 85,448.18, 128,171.73 and 34,847.01

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Solution

The fourth proportional to 85,448.18, 128,171.73 and 34,847.01 is: 52,270.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,448.18 : 128,171.73 = 34,847.01 : x
  2. Step 2: Convert to fraction form
    85,448.18/128,171.73 = 34,847.01/x
  3. Step 3: Cross multiply
    85,448.18x = 128,171.73 × 34,847.01
  4. Step 4: Simplify right side
    85,448.18x = 4,466,401,687.70
  5. Step 5: Solve for x
    x = 4,466,401,687.70/85,448.18
  6. Step 6: Final answer
    x = 52,270.29

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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.