Home / 85,495.07-128,049.96-41,155.13

Finding the Fourth Proportional to 85,495.07, 128,049.96 and 41,155.13

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Solution

The fourth proportional to 85,495.07, 128,049.96 and 41,155.13 is: 61,639.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,495.07 : 128,049.96 = 41,155.13 : x
  2. Step 2: Convert to fraction form
    85,495.07/128,049.96 = 41,155.13/x
  3. Step 3: Cross multiply
    85,495.07x = 128,049.96 × 41,155.13
  4. Step 4: Simplify right side
    85,495.07x = 5,269,912,750.29
  5. Step 5: Solve for x
    x = 5,269,912,750.29/85,495.07
  6. Step 6: Final answer
    x = 61,639.96

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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.