Home / 85,404.44-128,123.13-26,229.62

Finding the Fourth Proportional to 85,404.44, 128,123.13 and 26,229.62

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Solution

The fourth proportional to 85,404.44, 128,123.13 and 26,229.62 is: 39,349.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,404.44 : 128,123.13 = 26,229.62 : x
  2. Step 2: Convert to fraction form
    85,404.44/128,123.13 = 26,229.62/x
  3. Step 3: Cross multiply
    85,404.44x = 128,123.13 × 26,229.62
  4. Step 4: Simplify right side
    85,404.44x = 3,360,621,013.11
  5. Step 5: Solve for x
    x = 3,360,621,013.11/85,404.44
  6. Step 6: Final answer
    x = 39,349.49

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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.