Home / 55,345.26-83,051.16-19,803.78

Finding the Fourth Proportional to 55,345.26, 83,051.16 and 19,803.78

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Solution

The fourth proportional to 55,345.26, 83,051.16 and 19,803.78 is: 29,717.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,345.26 : 83,051.16 = 19,803.78 : x
  2. Step 2: Convert to fraction form
    55,345.26/83,051.16 = 19,803.78/x
  3. Step 3: Cross multiply
    55,345.26x = 83,051.16 × 19,803.78
  4. Step 4: Simplify right side
    55,345.26x = 1,644,726,827.12
  5. Step 5: Solve for x
    x = 1,644,726,827.12/55,345.26
  6. Step 6: Final answer
    x = 29,717.57

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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.