Home / 78,853.12-108,817.26-43,043.13

Finding the Fourth Proportional to 78,853.12, 108,817.26 and 43,043.13

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Solution

The fourth proportional to 78,853.12, 108,817.26 and 43,043.13 is: 59,399.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,853.12 : 108,817.26 = 43,043.13 : x
  2. Step 2: Convert to fraction form
    78,853.12/108,817.26 = 43,043.13/x
  3. Step 3: Cross multiply
    78,853.12x = 108,817.26 × 43,043.13
  4. Step 4: Simplify right side
    78,853.12x = 4,683,835,468.42
  5. Step 5: Solve for x
    x = 4,683,835,468.42/78,853.12
  6. Step 6: Final answer
    x = 59,399.49

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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.