Home / 85,542.62-128,202.95-38,090.18

Finding the Fourth Proportional to 85,542.62, 128,202.95 and 38,090.18

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Solution

The fourth proportional to 85,542.62, 128,202.95 and 38,090.18 is: 57,085.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,542.62 : 128,202.95 = 38,090.18 : x
  2. Step 2: Convert to fraction form
    85,542.62/128,202.95 = 38,090.18/x
  3. Step 3: Cross multiply
    85,542.62x = 128,202.95 × 38,090.18
  4. Step 4: Simplify right side
    85,542.62x = 4,883,273,857.76
  5. Step 5: Solve for x
    x = 4,883,273,857.76/85,542.62
  6. Step 6: Final answer
    x = 57,085.86

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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.