Home / 85,461.09-117,928.35-49,650.59

Finding the Fourth Proportional to 85,461.09, 117,928.35 and 49,650.59

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Solution

The fourth proportional to 85,461.09, 117,928.35 and 49,650.59 is: 68,513.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,461.09 : 117,928.35 = 49,650.59 : x
  2. Step 2: Convert to fraction form
    85,461.09/117,928.35 = 49,650.59/x
  3. Step 3: Cross multiply
    85,461.09x = 117,928.35 × 49,650.59
  4. Step 4: Simplify right side
    85,461.09x = 5,855,211,565.58
  5. Step 5: Solve for x
    x = 5,855,211,565.58/85,461.09
  6. Step 6: Final answer
    x = 68,513.19

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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.