Home / 56,740.70-78,133.14-55,481.92

Finding the Fourth Proportional to 56,740.70, 78,133.14 and 55,481.92

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Solution

The fourth proportional to 56,740.70, 78,133.14 and 55,481.92 is: 76,399.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,740.70 : 78,133.14 = 55,481.92 : x
  2. Step 2: Convert to fraction form
    56,740.70/78,133.14 = 55,481.92/x
  3. Step 3: Cross multiply
    56,740.70x = 78,133.14 × 55,481.92
  4. Step 4: Simplify right side
    56,740.70x = 4,334,976,622.83
  5. Step 5: Solve for x
    x = 4,334,976,622.83/56,740.70
  6. Step 6: Final answer
    x = 76,399.77

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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.