Home / 85,329.29-128,010.41-32,734.67

Finding the Fourth Proportional to 85,329.29, 128,010.41 and 32,734.67

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Solution

The fourth proportional to 85,329.29, 128,010.41 and 32,734.67 is: 49,108.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,329.29 : 128,010.41 = 32,734.67 : x
  2. Step 2: Convert to fraction form
    85,329.29/128,010.41 = 32,734.67/x
  3. Step 3: Cross multiply
    85,329.29x = 128,010.41 × 32,734.67
  4. Step 4: Simplify right side
    85,329.29x = 4,190,377,724.19
  5. Step 5: Solve for x
    x = 4,190,377,724.19/85,329.29
  6. Step 6: Final answer
    x = 49,108.32

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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.