Home / 55,478.08-76,560.26-31,604.40

Finding the Fourth Proportional to 55,478.08, 76,560.26 and 31,604.40

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Solution

The fourth proportional to 55,478.08, 76,560.26 and 31,604.40 is: 43,614.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,478.08 : 76,560.26 = 31,604.40 : x
  2. Step 2: Convert to fraction form
    55,478.08/76,560.26 = 31,604.40/x
  3. Step 3: Cross multiply
    55,478.08x = 76,560.26 × 31,604.40
  4. Step 4: Simplify right side
    55,478.08x = 2,419,641,081.14
  5. Step 5: Solve for x
    x = 2,419,641,081.14/55,478.08
  6. Step 6: Final answer
    x = 43,614.36

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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.