Home / 55,132.84-76,081.54-31,261.64

Finding the Fourth Proportional to 55,132.84, 76,081.54 and 31,261.64

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Solution

The fourth proportional to 55,132.84, 76,081.54 and 31,261.64 is: 43,140.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,132.84 : 76,081.54 = 31,261.64 : x
  2. Step 2: Convert to fraction form
    55,132.84/76,081.54 = 31,261.64/x
  3. Step 3: Cross multiply
    55,132.84x = 76,081.54 × 31,261.64
  4. Step 4: Simplify right side
    55,132.84x = 2,378,433,714.13
  5. Step 5: Solve for x
    x = 2,378,433,714.13/55,132.84
  6. Step 6: Final answer
    x = 43,140.05

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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.