Home / 90,629.12-125,065.59-50,341.88

Finding the Fourth Proportional to 90,629.12, 125,065.59 and 50,341.88

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Solution

The fourth proportional to 90,629.12, 125,065.59 and 50,341.88 is: 69,470.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,629.12 : 125,065.59 = 50,341.88 : x
  2. Step 2: Convert to fraction form
    90,629.12/125,065.59 = 50,341.88/x
  3. Step 3: Cross multiply
    90,629.12x = 125,065.59 × 50,341.88
  4. Step 4: Simplify right side
    90,629.12x = 6,296,036,298.58
  5. Step 5: Solve for x
    x = 6,296,036,298.58/90,629.12
  6. Step 6: Final answer
    x = 69,470.35

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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.