Home / 54,946.18-75,820.62-31,072.78

Finding the Fourth Proportional to 54,946.18, 75,820.62 and 31,072.78

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Solution

The fourth proportional to 54,946.18, 75,820.62 and 31,072.78 is: 42,877.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,946.18 : 75,820.62 = 31,072.78 : x
  2. Step 2: Convert to fraction form
    54,946.18/75,820.62 = 31,072.78/x
  3. Step 3: Cross multiply
    54,946.18x = 75,820.62 × 31,072.78
  4. Step 4: Simplify right side
    54,946.18x = 2,355,957,444.72
  5. Step 5: Solve for x
    x = 2,355,957,444.72/54,946.18
  6. Step 6: Final answer
    x = 42,877.55

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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.