Home / 79,278.75-109,394.65-43,459.34

Finding the Fourth Proportional to 79,278.75, 109,394.65 and 43,459.34

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Solution

The fourth proportional to 79,278.75, 109,394.65 and 43,459.34 is: 59,968.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,278.75 : 109,394.65 = 43,459.34 : x
  2. Step 2: Convert to fraction form
    79,278.75/109,394.65 = 43,459.34/x
  3. Step 3: Cross multiply
    79,278.75x = 109,394.65 × 43,459.34
  4. Step 4: Simplify right side
    79,278.75x = 4,754,218,795.88
  5. Step 5: Solve for x
    x = 4,754,218,795.88/79,278.75
  6. Step 6: Final answer
    x = 59,968.39

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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.