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Finding the Fourth Proportional to 85,750.36, 128,625.59 and 35,803.24

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Solution

The fourth proportional to 85,750.36, 128,625.59 and 35,803.24 is: 53,704.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,750.36 : 128,625.59 = 35,803.24 : x
  2. Step 2: Convert to fraction form
    85,750.36/128,625.59 = 35,803.24/x
  3. Step 3: Cross multiply
    85,750.36x = 128,625.59 × 35,803.24
  4. Step 4: Simplify right side
    85,750.36x = 4,605,212,868.91
  5. Step 5: Solve for x
    x = 4,605,212,868.91/85,750.36
  6. Step 6: Final answer
    x = 53,704.88

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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.