Home / 85,557.50-128,299.46-29,403.24

Finding the Fourth Proportional to 85,557.50, 128,299.46 and 29,403.24

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Solution

The fourth proportional to 85,557.50, 128,299.46 and 29,403.24 is: 44,092.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,557.50 : 128,299.46 = 29,403.24 : x
  2. Step 2: Convert to fraction form
    85,557.50/128,299.46 = 29,403.24/x
  3. Step 3: Cross multiply
    85,557.50x = 128,299.46 × 29,403.24
  4. Step 4: Simplify right side
    85,557.50x = 3,772,419,667.23
  5. Step 5: Solve for x
    x = 3,772,419,667.23/85,557.50
  6. Step 6: Final answer
    x = 44,092.22

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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.