Home / 55,133.17-76,101.11-31,275.70

Finding the Fourth Proportional to 55,133.17, 76,101.11 and 31,275.70

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Solution

The fourth proportional to 55,133.17, 76,101.11 and 31,275.70 is: 43,170.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,133.17 : 76,101.11 = 31,275.70 : x
  2. Step 2: Convert to fraction form
    55,133.17/76,101.11 = 31,275.70/x
  3. Step 3: Cross multiply
    55,133.17x = 76,101.11 × 31,275.70
  4. Step 4: Simplify right side
    55,133.17x = 2,380,115,486.03
  5. Step 5: Solve for x
    x = 2,380,115,486.03/55,133.17
  6. Step 6: Final answer
    x = 43,170.30

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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.