Home / 72,129.29-99,521.36-41,896.65

Finding the Fourth Proportional to 72,129.29, 99,521.36 and 41,896.65

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Solution

The fourth proportional to 72,129.29, 99,521.36 and 41,896.65 is: 57,807.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,129.29 : 99,521.36 = 41,896.65 : x
  2. Step 2: Convert to fraction form
    72,129.29/99,521.36 = 41,896.65/x
  3. Step 3: Cross multiply
    72,129.29x = 99,521.36 × 41,896.65
  4. Step 4: Simplify right side
    72,129.29x = 4,169,611,377.96
  5. Step 5: Solve for x
    x = 4,169,611,377.96/72,129.29
  6. Step 6: Final answer
    x = 57,807.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.