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Finding the Fourth Proportional to 79,571.70, 109,803.60 and 45,580.32

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Solution

The fourth proportional to 79,571.70, 109,803.60 and 45,580.32 is: 62,897.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,571.70 : 109,803.60 = 45,580.32 : x
  2. Step 2: Convert to fraction form
    79,571.70/109,803.60 = 45,580.32/x
  3. Step 3: Cross multiply
    79,571.70x = 109,803.60 × 45,580.32
  4. Step 4: Simplify right side
    79,571.70x = 5,004,883,225.15
  5. Step 5: Solve for x
    x = 5,004,883,225.15/79,571.70
  6. Step 6: Final answer
    x = 62,897.78

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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.