Home / 85,403.13-117,857.48-47,165.25

Finding the Fourth Proportional to 85,403.13, 117,857.48 and 47,165.25

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Solution

The fourth proportional to 85,403.13, 117,857.48 and 47,165.25 is: 65,088.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,403.13 : 117,857.48 = 47,165.25 : x
  2. Step 2: Convert to fraction form
    85,403.13/117,857.48 = 47,165.25/x
  3. Step 3: Cross multiply
    85,403.13x = 117,857.48 × 47,165.25
  4. Step 4: Simplify right side
    85,403.13x = 5,558,777,980.01
  5. Step 5: Solve for x
    x = 5,558,777,980.01/85,403.13
  6. Step 6: Final answer
    x = 65,088.69

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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.