Home / 261,610.32-392,343.69-72,026.19

Finding the Fourth Proportional to 261,610.32, 392,343.69 and 72,026.19

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Solution

The fourth proportional to 261,610.32, 392,343.69 and 72,026.19 is: 108,019.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,610.32 : 392,343.69 = 72,026.19 : x
  2. Step 2: Convert to fraction form
    261,610.32/392,343.69 = 72,026.19/x
  3. Step 3: Cross multiply
    261,610.32x = 392,343.69 × 72,026.19
  4. Step 4: Simplify right side
    261,610.32x = 28,259,021,161.24
  5. Step 5: Solve for x
    x = 28,259,021,161.24/261,610.32
  6. Step 6: Final answer
    x = 108,019.52

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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.