Home / 65,458.74-90,330.48-40,007.73

Finding the Fourth Proportional to 65,458.74, 90,330.48 and 40,007.73

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Solution

The fourth proportional to 65,458.74, 90,330.48 and 40,007.73 is: 55,209.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,458.74 : 90,330.48 = 40,007.73 : x
  2. Step 2: Convert to fraction form
    65,458.74/90,330.48 = 40,007.73/x
  3. Step 3: Cross multiply
    65,458.74x = 90,330.48 × 40,007.73
  4. Step 4: Simplify right side
    65,458.74x = 3,613,917,454.61
  5. Step 5: Solve for x
    x = 3,613,917,454.61/65,458.74
  6. Step 6: Final answer
    x = 55,209.09

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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.