Home / 55,889.52-77,127.24-30,738.48

Finding the Fourth Proportional to 55,889.52, 77,127.24 and 30,738.48

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Solution

The fourth proportional to 55,889.52, 77,127.24 and 30,738.48 is: 42,418.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,889.52 : 77,127.24 = 30,738.48 : x
  2. Step 2: Convert to fraction form
    55,889.52/77,127.24 = 30,738.48/x
  3. Step 3: Cross multiply
    55,889.52x = 77,127.24 × 30,738.48
  4. Step 4: Simplify right side
    55,889.52x = 2,370,774,124.20
  5. Step 5: Solve for x
    x = 2,370,774,124.20/55,889.52
  6. Step 6: Final answer
    x = 42,418.94

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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.