Home / 85,426.30-128,175.90-41,030.20

Finding the Fourth Proportional to 85,426.30, 128,175.90 and 41,030.20

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Solution

The fourth proportional to 85,426.30, 128,175.90 and 41,030.20 is: 61,562.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,426.30 : 128,175.90 = 41,030.20 : x
  2. Step 2: Convert to fraction form
    85,426.30/128,175.90 = 41,030.20/x
  3. Step 3: Cross multiply
    85,426.30x = 128,175.90 × 41,030.20
  4. Step 4: Simplify right side
    85,426.30x = 5,259,082,812.18
  5. Step 5: Solve for x
    x = 5,259,082,812.18/85,426.30
  6. Step 6: Final answer
    x = 61,562.81

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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.