Home / 85,365.12-117,810.54-47,645.04

Finding the Fourth Proportional to 85,365.12, 117,810.54 and 47,645.04

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Solution

The fourth proportional to 85,365.12, 117,810.54 and 47,645.04 is: 65,753.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,365.12 : 117,810.54 = 47,645.04 : x
  2. Step 2: Convert to fraction form
    85,365.12/117,810.54 = 47,645.04/x
  3. Step 3: Cross multiply
    85,365.12x = 117,810.54 × 47,645.04
  4. Step 4: Simplify right side
    85,365.12x = 5,613,087,890.72
  5. Step 5: Solve for x
    x = 5,613,087,890.72/85,365.12
  6. Step 6: Final answer
    x = 65,753.88

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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.