Home / 55,060.83-75,989.30-30,865.91

Finding the Fourth Proportional to 55,060.83, 75,989.30 and 30,865.91

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Solution

The fourth proportional to 55,060.83, 75,989.30 and 30,865.91 is: 42,597.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,060.83 : 75,989.30 = 30,865.91 : x
  2. Step 2: Convert to fraction form
    55,060.83/75,989.30 = 30,865.91/x
  3. Step 3: Cross multiply
    55,060.83x = 75,989.30 × 30,865.91
  4. Step 4: Simplify right side
    55,060.83x = 2,345,478,360.49
  5. Step 5: Solve for x
    x = 2,345,478,360.49/55,060.83
  6. Step 6: Final answer
    x = 42,597.95

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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.