Home / 85,428.37-128,094.56-35,474.86

Finding the Fourth Proportional to 85,428.37, 128,094.56 and 35,474.86

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Solution

The fourth proportional to 85,428.37, 128,094.56 and 35,474.86 is: 53,192.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,428.37 : 128,094.56 = 35,474.86 : x
  2. Step 2: Convert to fraction form
    85,428.37/128,094.56 = 35,474.86/x
  3. Step 3: Cross multiply
    85,428.37x = 128,094.56 × 35,474.86
  4. Step 4: Simplify right side
    85,428.37x = 4,544,135,764.91
  5. Step 5: Solve for x
    x = 4,544,135,764.91/85,428.37
  6. Step 6: Final answer
    x = 53,192.35

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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.