Home / 55,141.20-76,088.52-31,263.12

Finding the Fourth Proportional to 55,141.20, 76,088.52 and 31,263.12

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Solution

The fourth proportional to 55,141.20, 76,088.52 and 31,263.12 is: 43,139.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,141.20 : 76,088.52 = 31,263.12 : x
  2. Step 2: Convert to fraction form
    55,141.20/76,088.52 = 31,263.12/x
  3. Step 3: Cross multiply
    55,141.20x = 76,088.52 × 31,263.12
  4. Step 4: Simplify right side
    55,141.20x = 2,378,764,531.38
  5. Step 5: Solve for x
    x = 2,378,764,531.38/55,141.20
  6. Step 6: Final answer
    x = 43,139.51

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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.