Home / 77,712.32-107,233.48-49,021.21

Finding the Fourth Proportional to 77,712.32, 107,233.48 and 49,021.21

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Solution

The fourth proportional to 77,712.32, 107,233.48 and 49,021.21 is: 67,643.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,712.32 : 107,233.48 = 49,021.21 : x
  2. Step 2: Convert to fraction form
    77,712.32/107,233.48 = 49,021.21/x
  3. Step 3: Cross multiply
    77,712.32x = 107,233.48 × 49,021.21
  4. Step 4: Simplify right side
    77,712.32x = 5,256,714,405.94
  5. Step 5: Solve for x
    x = 5,256,714,405.94/77,712.32
  6. Step 6: Final answer
    x = 67,643.26

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1.5x scale

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.