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Finding the Fourth Proportional to 79,295.60, 109,428.72 and 45,308.54

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Solution

The fourth proportional to 79,295.60, 109,428.72 and 45,308.54 is: 62,526.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,295.60 : 109,428.72 = 45,308.54 : x
  2. Step 2: Convert to fraction form
    79,295.60/109,428.72 = 45,308.54/x
  3. Step 3: Cross multiply
    79,295.60x = 109,428.72 × 45,308.54
  4. Step 4: Simplify right side
    79,295.60x = 4,958,055,537.27
  5. Step 5: Solve for x
    x = 4,958,055,537.27/79,295.60
  6. Step 6: Final answer
    x = 62,526.24

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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.