Home / 85,512.14-128,294.16-45,524.30

Finding the Fourth Proportional to 85,512.14, 128,294.16 and 45,524.30

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Solution

The fourth proportional to 85,512.14, 128,294.16 and 45,524.30 is: 68,300.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,512.14 : 128,294.16 = 45,524.30 : x
  2. Step 2: Convert to fraction form
    85,512.14/128,294.16 = 45,524.30/x
  3. Step 3: Cross multiply
    85,512.14x = 128,294.16 × 45,524.30
  4. Step 4: Simplify right side
    85,512.14x = 5,840,501,828.09
  5. Step 5: Solve for x
    x = 5,840,501,828.09/85,512.14
  6. Step 6: Final answer
    x = 68,300.27

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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.