Home / 85,213.10-117,806.66-63,955.46

Finding the Fourth Proportional to 85,213.10, 117,806.66 and 63,955.46

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Solution

The fourth proportional to 85,213.10, 117,806.66 and 63,955.46 is: 88,418.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,213.10 : 117,806.66 = 63,955.46 : x
  2. Step 2: Convert to fraction form
    85,213.10/117,806.66 = 63,955.46/x
  3. Step 3: Cross multiply
    85,213.10x = 117,806.66 × 63,955.46
  4. Step 4: Simplify right side
    85,213.10x = 7,534,378,222.55
  5. Step 5: Solve for x
    x = 7,534,378,222.55/85,213.10
  6. Step 6: Final answer
    x = 88,418.08

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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.