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Finding the Fourth Proportional to 79,454.60, 109,657.11 and 45,920.60

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Solution

The fourth proportional to 79,454.60, 109,657.11 and 45,920.60 is: 63,376.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,454.60 : 109,657.11 = 45,920.60 : x
  2. Step 2: Convert to fraction form
    79,454.60/109,657.11 = 45,920.60/x
  3. Step 3: Cross multiply
    79,454.60x = 109,657.11 × 45,920.60
  4. Step 4: Simplify right side
    79,454.60x = 5,035,520,285.47
  5. Step 5: Solve for x
    x = 5,035,520,285.47/79,454.60
  6. Step 6: Final answer
    x = 63,376.07

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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.