Home / 85,272.48-127,935.36-29,113.92

Finding the Fourth Proportional to 85,272.48, 127,935.36 and 29,113.92

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Solution

The fourth proportional to 85,272.48, 127,935.36 and 29,113.92 is: 43,679.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,272.48 : 127,935.36 = 29,113.92 : x
  2. Step 2: Convert to fraction form
    85,272.48/127,935.36 = 29,113.92/x
  3. Step 3: Cross multiply
    85,272.48x = 127,935.36 × 29,113.92
  4. Step 4: Simplify right side
    85,272.48x = 3,724,699,836.21
  5. Step 5: Solve for x
    x = 3,724,699,836.21/85,272.48
  6. Step 6: Final answer
    x = 43,679.98

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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.