Home / 55,655.22-76,807.98-31,447.80

Finding the Fourth Proportional to 55,655.22, 76,807.98 and 31,447.80

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Solution

The fourth proportional to 55,655.22, 76,807.98 and 31,447.80 is: 43,400.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,655.22 : 76,807.98 = 31,447.80 : x
  2. Step 2: Convert to fraction form
    55,655.22/76,807.98 = 31,447.80/x
  3. Step 3: Cross multiply
    55,655.22x = 76,807.98 × 31,447.80
  4. Step 4: Simplify right side
    55,655.22x = 2,415,441,993.44
  5. Step 5: Solve for x
    x = 2,415,441,993.44/55,655.22
  6. Step 6: Final answer
    x = 43,400.10

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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.