Home / 79,421.58-109,603.69-43,124.57

Finding the Fourth Proportional to 79,421.58, 109,603.69 and 43,124.57

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Solution

The fourth proportional to 79,421.58, 109,603.69 and 43,124.57 is: 59,512.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,421.58 : 109,603.69 = 43,124.57 : x
  2. Step 2: Convert to fraction form
    79,421.58/109,603.69 = 43,124.57/x
  3. Step 3: Cross multiply
    79,421.58x = 109,603.69 × 43,124.57
  4. Step 4: Simplify right side
    79,421.58x = 4,726,612,001.66
  5. Step 5: Solve for x
    x = 4,726,612,001.66/79,421.58
  6. Step 6: Final answer
    x = 59,512.94

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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.