Home / 85,535.91-128,291.70-29,375.10

Finding the Fourth Proportional to 85,535.91, 128,291.70 and 29,375.10

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Solution

The fourth proportional to 85,535.91, 128,291.70 and 29,375.10 is: 44,058.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,535.91 : 128,291.70 = 29,375.10 : x
  2. Step 2: Convert to fraction form
    85,535.91/128,291.70 = 29,375.10/x
  3. Step 3: Cross multiply
    85,535.91x = 128,291.70 × 29,375.10
  4. Step 4: Simplify right side
    85,535.91x = 3,768,581,516.67
  5. Step 5: Solve for x
    x = 3,768,581,516.67/85,535.91
  6. Step 6: Final answer
    x = 44,058.47

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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.