Home / 85,109.36-117,465.14-49,321.13

Finding the Fourth Proportional to 85,109.36, 117,465.14 and 49,321.13

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Solution

The fourth proportional to 85,109.36, 117,465.14 and 49,321.13 is: 68,071.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,109.36 : 117,465.14 = 49,321.13 : x
  2. Step 2: Convert to fraction form
    85,109.36/117,465.14 = 49,321.13/x
  3. Step 3: Cross multiply
    85,109.36x = 117,465.14 × 49,321.13
  4. Step 4: Simplify right side
    85,109.36x = 5,793,513,193.80
  5. Step 5: Solve for x
    x = 5,793,513,193.80/85,109.36
  6. Step 6: Final answer
    x = 68,071.40

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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.