Home / 55,308.05-76,329.65-31,442.21

Finding the Fourth Proportional to 55,308.05, 76,329.65 and 31,442.21

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Solution

The fourth proportional to 55,308.05, 76,329.65 and 31,442.21 is: 43,392.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,308.05 : 76,329.65 = 31,442.21 : x
  2. Step 2: Convert to fraction form
    55,308.05/76,329.65 = 31,442.21/x
  3. Step 3: Cross multiply
    55,308.05x = 76,329.65 × 31,442.21
  4. Step 4: Simplify right side
    55,308.05x = 2,399,972,884.53
  5. Step 5: Solve for x
    x = 2,399,972,884.53/55,308.05
  6. Step 6: Final answer
    x = 43,392.83

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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.