Home / 81,239.15-121,814.08-25,063.93

Finding the Fourth Proportional to 81,239.15, 121,814.08 and 25,063.93

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Solution

The fourth proportional to 81,239.15, 121,814.08 and 25,063.93 is: 37,582.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,239.15 : 121,814.08 = 25,063.93 : x
  2. Step 2: Convert to fraction form
    81,239.15/121,814.08 = 25,063.93/x
  3. Step 3: Cross multiply
    81,239.15x = 121,814.08 × 25,063.93
  4. Step 4: Simplify right side
    81,239.15x = 3,053,139,663.74
  5. Step 5: Solve for x
    x = 3,053,139,663.74/81,239.15
  6. Step 6: Final answer
    x = 37,582.12

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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.