Home / 79,237.47-118,860.55-20,073.66

Finding the Fourth Proportional to 79,237.47, 118,860.55 and 20,073.66

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Solution

The fourth proportional to 79,237.47, 118,860.55 and 20,073.66 is: 30,111.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,237.47 : 118,860.55 = 20,073.66 : x
  2. Step 2: Convert to fraction form
    79,237.47/118,860.55 = 20,073.66/x
  3. Step 3: Cross multiply
    79,237.47x = 118,860.55 × 20,073.66
  4. Step 4: Simplify right side
    79,237.47x = 2,385,965,772.20
  5. Step 5: Solve for x
    x = 2,385,965,772.20/79,237.47
  6. Step 6: Final answer
    x = 30,111.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.