Home / 85,899.52-128,834.24-22,720.24

Finding the Fourth Proportional to 85,899.52, 128,834.24 and 22,720.24

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Solution

The fourth proportional to 85,899.52, 128,834.24 and 22,720.24 is: 34,076.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,899.52 : 128,834.24 = 22,720.24 : x
  2. Step 2: Convert to fraction form
    85,899.52/128,834.24 = 22,720.24/x
  3. Step 3: Cross multiply
    85,899.52x = 128,834.24 × 22,720.24
  4. Step 4: Simplify right side
    85,899.52x = 2,927,144,853.02
  5. Step 5: Solve for x
    x = 2,927,144,853.02/85,899.52
  6. Step 6: Final answer
    x = 34,076.38

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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.