Home / 55,161.64-76,124.76-31,289.32

Finding the Fourth Proportional to 55,161.64, 76,124.76 and 31,289.32

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Solution

The fourth proportional to 55,161.64, 76,124.76 and 31,289.32 is: 43,180.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,161.64 : 76,124.76 = 31,289.32 : x
  2. Step 2: Convert to fraction form
    55,161.64/76,124.76 = 31,289.32/x
  3. Step 3: Cross multiply
    55,161.64x = 76,124.76 × 31,289.32
  4. Step 4: Simplify right side
    55,161.64x = 2,381,891,594.94
  5. Step 5: Solve for x
    x = 2,381,891,594.94/55,161.64
  6. Step 6: Final answer
    x = 43,180.22

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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.