Home / 55,162.64-76,126.14-31,290.32

Finding the Fourth Proportional to 55,162.64, 76,126.14 and 31,290.32

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Solution

The fourth proportional to 55,162.64, 76,126.14 and 31,290.32 is: 43,181.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,162.64 : 76,126.14 = 31,290.32 : x
  2. Step 2: Convert to fraction form
    55,162.64/76,126.14 = 31,290.32/x
  3. Step 3: Cross multiply
    55,162.64x = 76,126.14 × 31,290.32
  4. Step 4: Simplify right side
    55,162.64x = 2,382,010,900.33
  5. Step 5: Solve for x
    x = 2,382,010,900.33/55,162.64
  6. Step 6: Final answer
    x = 43,181.60

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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.