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Finding the Fourth Proportional to 65,445.60, 90,309.62 and 36,763.70

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Solution

The fourth proportional to 65,445.60, 90,309.62 and 36,763.70 is: 50,730.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,445.60 : 90,309.62 = 36,763.70 : x
  2. Step 2: Convert to fraction form
    65,445.60/90,309.62 = 36,763.70/x
  3. Step 3: Cross multiply
    65,445.60x = 90,309.62 × 36,763.70
  4. Step 4: Simplify right side
    65,445.60x = 3,320,115,592.98
  5. Step 5: Solve for x
    x = 3,320,115,592.98/65,445.60
  6. Step 6: Final answer
    x = 50,730.92

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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.