Home / 55,905.70-77,124.18-49,538.74

Finding the Fourth Proportional to 55,905.70, 77,124.18 and 49,538.74

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Solution

The fourth proportional to 55,905.70, 77,124.18 and 49,538.74 is: 68,340.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,905.70 : 77,124.18 = 49,538.74 : x
  2. Step 2: Convert to fraction form
    55,905.70/77,124.18 = 49,538.74/x
  3. Step 3: Cross multiply
    55,905.70x = 77,124.18 × 49,538.74
  4. Step 4: Simplify right side
    55,905.70x = 3,820,634,700.73
  5. Step 5: Solve for x
    x = 3,820,634,700.73/55,905.70
  6. Step 6: Final answer
    x = 68,340.70

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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.