Home / 55,724.45-76,901.09-30,573.95

Finding the Fourth Proportional to 55,724.45, 76,901.09 and 30,573.95

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Solution

The fourth proportional to 55,724.45, 76,901.09 and 30,573.95 is: 42,192.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,724.45 : 76,901.09 = 30,573.95 : x
  2. Step 2: Convert to fraction form
    55,724.45/76,901.09 = 30,573.95/x
  3. Step 3: Cross multiply
    55,724.45x = 76,901.09 × 30,573.95
  4. Step 4: Simplify right side
    55,724.45x = 2,351,169,543.23
  5. Step 5: Solve for x
    x = 2,351,169,543.23/55,724.45
  6. Step 6: Final answer
    x = 42,192.79

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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.