Home / 79,211.82-109,312.29-43,403.19

Finding the Fourth Proportional to 79,211.82, 109,312.29 and 43,403.19

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Solution

The fourth proportional to 79,211.82, 109,312.29 and 43,403.19 is: 59,896.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,211.82 : 109,312.29 = 43,403.19 : x
  2. Step 2: Convert to fraction form
    79,211.82/109,312.29 = 43,403.19/x
  3. Step 3: Cross multiply
    79,211.82x = 109,312.29 × 43,403.19
  4. Step 4: Simplify right side
    79,211.82x = 4,744,502,092.21
  5. Step 5: Solve for x
    x = 4,744,502,092.21/79,211.82
  6. Step 6: Final answer
    x = 59,896.39

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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.