Home / 79,117.72-109,180.02-43,307.08

Finding the Fourth Proportional to 79,117.72, 109,180.02 and 43,307.08

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Solution

The fourth proportional to 79,117.72, 109,180.02 and 43,307.08 is: 59,762.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,117.72 : 109,180.02 = 43,307.08 : x
  2. Step 2: Convert to fraction form
    79,117.72/109,180.02 = 43,307.08/x
  3. Step 3: Cross multiply
    79,117.72x = 109,180.02 × 43,307.08
  4. Step 4: Simplify right side
    79,117.72x = 4,728,267,860.54
  5. Step 5: Solve for x
    x = 4,728,267,860.54/79,117.72
  6. Step 6: Final answer
    x = 59,762.44

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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.