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Finding the Fourth Proportional to 65,653.76, 90,599.04 and 37,356.80

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Solution

The fourth proportional to 65,653.76, 90,599.04 and 37,356.80 is: 51,550.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,653.76 : 90,599.04 = 37,356.80 : x
  2. Step 2: Convert to fraction form
    65,653.76/90,599.04 = 37,356.80/x
  3. Step 3: Cross multiply
    65,653.76x = 90,599.04 × 37,356.80
  4. Step 4: Simplify right side
    65,653.76x = 3,384,490,217.47
  5. Step 5: Solve for x
    x = 3,384,490,217.47/65,653.76
  6. Step 6: Final answer
    x = 51,550.59

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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.