Home / 85,562.24-128,312.64-32,945.28

Finding the Fourth Proportional to 85,562.24, 128,312.64 and 32,945.28

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Solution

The fourth proportional to 85,562.24, 128,312.64 and 32,945.28 is: 49,406.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,562.24 : 128,312.64 = 32,945.28 : x
  2. Step 2: Convert to fraction form
    85,562.24/128,312.64 = 32,945.28/x
  3. Step 3: Cross multiply
    85,562.24x = 128,312.64 × 32,945.28
  4. Step 4: Simplify right side
    85,562.24x = 4,227,295,852.34
  5. Step 5: Solve for x
    x = 4,227,295,852.34/85,562.24
  6. Step 6: Final answer
    x = 49,406.09

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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.