Home / 65,824.24-90,837.88-40,330.66

Finding the Fourth Proportional to 65,824.24, 90,837.88 and 40,330.66

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Solution

The fourth proportional to 65,824.24, 90,837.88 and 40,330.66 is: 55,656.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,824.24 : 90,837.88 = 40,330.66 : x
  2. Step 2: Convert to fraction form
    65,824.24/90,837.88 = 40,330.66/x
  3. Step 3: Cross multiply
    65,824.24x = 90,837.88 × 40,330.66
  4. Step 4: Simplify right side
    65,824.24x = 3,663,551,653.40
  5. Step 5: Solve for x
    x = 3,663,551,653.40/65,824.24
  6. Step 6: Final answer
    x = 55,656.57

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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.