Home / 101,478.86-140,034.38-55,529.18

Finding the Fourth Proportional to 101,478.86, 140,034.38 and 55,529.18

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Solution

The fourth proportional to 101,478.86, 140,034.38 and 55,529.18 is: 76,626.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,478.86 : 140,034.38 = 55,529.18 : x
  2. Step 2: Convert to fraction form
    101,478.86/140,034.38 = 55,529.18/x
  3. Step 3: Cross multiply
    101,478.86x = 140,034.38 × 55,529.18
  4. Step 4: Simplify right side
    101,478.86x = 7,775,994,293.21
  5. Step 5: Solve for x
    x = 7,775,994,293.21/101,478.86
  6. Step 6: Final answer
    x = 76,626.74

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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.