Home / 80,965.47-111,733.79-45,151.64

Finding the Fourth Proportional to 80,965.47, 111,733.79 and 45,151.64

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Solution

The fourth proportional to 80,965.47, 111,733.79 and 45,151.64 is: 62,310.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,965.47 : 111,733.79 = 45,151.64 : x
  2. Step 2: Convert to fraction form
    80,965.47/111,733.79 = 45,151.64/x
  3. Step 3: Cross multiply
    80,965.47x = 111,733.79 × 45,151.64
  4. Step 4: Simplify right side
    80,965.47x = 5,044,963,077.49
  5. Step 5: Solve for x
    x = 5,044,963,077.49/80,965.47
  6. Step 6: Final answer
    x = 62,310.06

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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.