Home / 85,887.26-128,869.23-33,300.85

Finding the Fourth Proportional to 85,887.26, 128,869.23 and 33,300.85

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Solution

The fourth proportional to 85,887.26, 128,869.23 and 33,300.85 is: 49,966.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,887.26 : 128,869.23 = 33,300.85 : x
  2. Step 2: Convert to fraction form
    85,887.26/128,869.23 = 33,300.85/x
  3. Step 3: Cross multiply
    85,887.26x = 128,869.23 × 33,300.85
  4. Step 4: Simplify right side
    85,887.26x = 4,291,454,087.00
  5. Step 5: Solve for x
    x = 4,291,454,087.00/85,887.26
  6. Step 6: Final answer
    x = 49,966.13

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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.