Home / 55,896.63-77,138.35-30,403.56

Finding the Fourth Proportional to 55,896.63, 77,138.35 and 30,403.56

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Solution

The fourth proportional to 55,896.63, 77,138.35 and 30,403.56 is: 41,957.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,896.63 : 77,138.35 = 30,403.56 : x
  2. Step 2: Convert to fraction form
    55,896.63/77,138.35 = 30,403.56/x
  3. Step 3: Cross multiply
    55,896.63x = 77,138.35 × 30,403.56
  4. Step 4: Simplify right side
    55,896.63x = 2,345,279,990.83
  5. Step 5: Solve for x
    x = 2,345,279,990.83/55,896.63
  6. Step 6: Final answer
    x = 41,957.45

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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.