Home / 55,356.04-76,393.02-31,486.15

Finding the Fourth Proportional to 55,356.04, 76,393.02 and 31,486.15

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Solution

The fourth proportional to 55,356.04, 76,393.02 and 31,486.15 is: 43,451.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,356.04 : 76,393.02 = 31,486.15 : x
  2. Step 2: Convert to fraction form
    55,356.04/76,393.02 = 31,486.15/x
  3. Step 3: Cross multiply
    55,356.04x = 76,393.02 × 31,486.15
  4. Step 4: Simplify right side
    55,356.04x = 2,405,322,086.67
  5. Step 5: Solve for x
    x = 2,405,322,086.67/55,356.04
  6. Step 6: Final answer
    x = 43,451.85

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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.