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Finding the Fourth Proportional to 72,772.83, 109,152.99 and 44,302.40

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Solution

The fourth proportional to 72,772.83, 109,152.99 and 44,302.40 is: 66,449.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,772.83 : 109,152.99 = 44,302.40 : x
  2. Step 2: Convert to fraction form
    72,772.83/109,152.99 = 44,302.40/x
  3. Step 3: Cross multiply
    72,772.83x = 109,152.99 × 44,302.40
  4. Step 4: Simplify right side
    72,772.83x = 4,835,739,044.55
  5. Step 5: Solve for x
    x = 4,835,739,044.55/72,772.83
  6. Step 6: Final answer
    x = 66,449.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.