Home / 55,368.78-76,406.22-31,168.32

Finding the Fourth Proportional to 55,368.78, 76,406.22 and 31,168.32

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Solution

The fourth proportional to 55,368.78, 76,406.22 and 31,168.32 is: 43,010.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,368.78 : 76,406.22 = 31,168.32 : x
  2. Step 2: Convert to fraction form
    55,368.78/76,406.22 = 31,168.32/x
  3. Step 3: Cross multiply
    55,368.78x = 76,406.22 × 31,168.32
  4. Step 4: Simplify right side
    55,368.78x = 2,381,453,514.95
  5. Step 5: Solve for x
    x = 2,381,453,514.95/55,368.78
  6. Step 6: Final answer
    x = 43,010.76

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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.