Home / 55,515.96-76,620.12-31,645.08

Finding the Fourth Proportional to 55,515.96, 76,620.12 and 31,645.08

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Solution

The fourth proportional to 55,515.96, 76,620.12 and 31,645.08 is: 43,674.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,515.96 : 76,620.12 = 31,645.08 : x
  2. Step 2: Convert to fraction form
    55,515.96/76,620.12 = 31,645.08/x
  3. Step 3: Cross multiply
    55,515.96x = 76,620.12 × 31,645.08
  4. Step 4: Simplify right side
    55,515.96x = 2,424,649,827.01
  5. Step 5: Solve for x
    x = 2,424,649,827.01/55,515.96
  6. Step 6: Final answer
    x = 43,674.82

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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.