Home / 55,838.80-77,056.68-30,687.76

Finding the Fourth Proportional to 55,838.80, 77,056.68 and 30,687.76

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Solution

The fourth proportional to 55,838.80, 77,056.68 and 30,687.76 is: 42,348.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,838.80 : 77,056.68 = 30,687.76 : x
  2. Step 2: Convert to fraction form
    55,838.80/77,056.68 = 30,687.76/x
  3. Step 3: Cross multiply
    55,838.80x = 77,056.68 × 30,687.76
  4. Step 4: Simplify right side
    55,838.80x = 2,364,696,902.24
  5. Step 5: Solve for x
    x = 2,364,696,902.24/55,838.80
  6. Step 6: Final answer
    x = 42,348.63

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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.