Home / 54,333.32-74,980.10-30,135.98

Finding the Fourth Proportional to 54,333.32, 74,980.10 and 30,135.98

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Solution

The fourth proportional to 54,333.32, 74,980.10 and 30,135.98 is: 41,587.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,333.32 : 74,980.10 = 30,135.98 : x
  2. Step 2: Convert to fraction form
    54,333.32/74,980.10 = 30,135.98/x
  3. Step 3: Cross multiply
    54,333.32x = 74,980.10 × 30,135.98
  4. Step 4: Simplify right side
    54,333.32x = 2,259,599,056.79
  5. Step 5: Solve for x
    x = 2,259,599,056.79/54,333.32
  6. Step 6: Final answer
    x = 41,587.73

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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.