Home / 54,980.15-75,872.61-31,106.34

Finding the Fourth Proportional to 54,980.15, 75,872.61 and 31,106.34

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Solution

The fourth proportional to 54,980.15, 75,872.61 and 31,106.34 is: 42,926.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,980.15 : 75,872.61 = 31,106.34 : x
  2. Step 2: Convert to fraction form
    54,980.15/75,872.61 = 31,106.34/x
  3. Step 3: Cross multiply
    54,980.15x = 75,872.61 × 31,106.34
  4. Step 4: Simplify right side
    54,980.15x = 2,360,119,203.35
  5. Step 5: Solve for x
    x = 2,360,119,203.35/54,980.15
  6. Step 6: Final answer
    x = 42,926.75

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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.