Home / 55,353.25-76,387.08-31,479.90

Finding the Fourth Proportional to 55,353.25, 76,387.08 and 31,479.90

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Solution

The fourth proportional to 55,353.25, 76,387.08 and 31,479.90 is: 43,442.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,353.25 : 76,387.08 = 31,479.90 : x
  2. Step 2: Convert to fraction form
    55,353.25/76,387.08 = 31,479.90/x
  3. Step 3: Cross multiply
    55,353.25x = 76,387.08 × 31,479.90
  4. Step 4: Simplify right side
    55,353.25x = 2,404,657,639.69
  5. Step 5: Solve for x
    x = 2,404,657,639.69/55,353.25
  6. Step 6: Final answer
    x = 43,442.03

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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.