Home / 85,071.09-117,398.11-47,354.25

Finding the Fourth Proportional to 85,071.09, 117,398.11 and 47,354.25

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Solution

The fourth proportional to 85,071.09, 117,398.11 and 47,354.25 is: 65,348.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,071.09 : 117,398.11 = 47,354.25 : x
  2. Step 2: Convert to fraction form
    85,071.09/117,398.11 = 47,354.25/x
  3. Step 3: Cross multiply
    85,071.09x = 117,398.11 × 47,354.25
  4. Step 4: Simplify right side
    85,071.09x = 5,559,299,861.11
  5. Step 5: Solve for x
    x = 5,559,299,861.11/85,071.09
  6. Step 6: Final answer
    x = 65,348.87

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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.