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Finding the Fourth Proportional to 79,573.75, 109,784.87 and 45,114.79

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Solution

The fourth proportional to 79,573.75, 109,784.87 and 45,114.79 is: 62,243.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,573.75 : 109,784.87 = 45,114.79 : x
  2. Step 2: Convert to fraction form
    79,573.75/109,784.87 = 45,114.79/x
  3. Step 3: Cross multiply
    79,573.75x = 109,784.87 × 45,114.79
  4. Step 4: Simplify right side
    79,573.75x = 4,952,921,355.23
  5. Step 5: Solve for x
    x = 4,952,921,355.23/79,573.75
  6. Step 6: Final answer
    x = 62,243.16

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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.