Home / 85,965.54-118,708.08-53,755.32

Finding the Fourth Proportional to 85,965.54, 118,708.08 and 53,755.32

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Solution

The fourth proportional to 85,965.54, 118,708.08 and 53,755.32 is: 74,229.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,965.54 : 118,708.08 = 53,755.32 : x
  2. Step 2: Convert to fraction form
    85,965.54/118,708.08 = 53,755.32/x
  3. Step 3: Cross multiply
    85,965.54x = 118,708.08 × 53,755.32
  4. Step 4: Simplify right side
    85,965.54x = 6,381,190,826.99
  5. Step 5: Solve for x
    x = 6,381,190,826.99/85,965.54
  6. Step 6: Final answer
    x = 74,229.64

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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.