Home / 85,546.46-128,352.54-60,270.26

Finding the Fourth Proportional to 85,546.46, 128,352.54 and 60,270.26

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Solution

The fourth proportional to 85,546.46, 128,352.54 and 60,270.26 is: 90,428.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,546.46 : 128,352.54 = 60,270.26 : x
  2. Step 2: Convert to fraction form
    85,546.46/128,352.54 = 60,270.26/x
  3. Step 3: Cross multiply
    85,546.46x = 128,352.54 × 60,270.26
  4. Step 4: Simplify right side
    85,546.46x = 7,735,840,957.46
  5. Step 5: Solve for x
    x = 7,735,840,957.46/85,546.46
  6. Step 6: Final answer
    x = 90,428.53

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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.