Home / 85,118.13-117,463.83-47,393.19

Finding the Fourth Proportional to 85,118.13, 117,463.83 and 47,393.19

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Solution

The fourth proportional to 85,118.13, 117,463.83 and 47,393.19 is: 65,403.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,118.13 : 117,463.83 = 47,393.19 : x
  2. Step 2: Convert to fraction form
    85,118.13/117,463.83 = 47,393.19/x
  3. Step 3: Cross multiply
    85,118.13x = 117,463.83 × 47,393.19
  4. Step 4: Simplify right side
    85,118.13x = 5,566,985,613.32
  5. Step 5: Solve for x
    x = 5,566,985,613.32/85,118.13
  6. Step 6: Final answer
    x = 65,403.05

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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.