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Finding the Fourth Proportional to 92,819.48, 128,091 and 50,378.00

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Solution

The fourth proportional to 92,819.48, 128,091 and 50,378.00 is: 69,521.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,819.48 : 128,091 = 50,378.00 : x
  2. Step 2: Convert to fraction form
    92,819.48/128,091 = 50,378.00/x
  3. Step 3: Cross multiply
    92,819.48x = 128,091 × 50,378.00
  4. Step 4: Simplify right side
    92,819.48x = 6,452,967,757.55
  5. Step 5: Solve for x
    x = 6,452,967,757.55/92,819.48
  6. Step 6: Final answer
    x = 69,521.70

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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.