Home / 79,070.80-109,119.28-43,261.58

Finding the Fourth Proportional to 79,070.80, 109,119.28 and 43,261.58

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Solution

The fourth proportional to 79,070.80, 109,119.28 and 43,261.58 is: 59,701.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,070.80 : 109,119.28 = 43,261.58 : x
  2. Step 2: Convert to fraction form
    79,070.80/109,119.28 = 43,261.58/x
  3. Step 3: Cross multiply
    79,070.80x = 109,119.28 × 43,261.58
  4. Step 4: Simplify right side
    79,070.80x = 4,720,672,583.54
  5. Step 5: Solve for x
    x = 4,720,672,583.54/79,070.80
  6. Step 6: Final answer
    x = 59,701.84

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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.