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Finding the Fourth Proportional to 72,054.88, 99,370.32 and 45,199.84

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Solution

The fourth proportional to 72,054.88, 99,370.32 and 45,199.84 is: 62,334.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,054.88 : 99,370.32 = 45,199.84 : x
  2. Step 2: Convert to fraction form
    72,054.88/99,370.32 = 45,199.84/x
  3. Step 3: Cross multiply
    72,054.88x = 99,370.32 × 45,199.84
  4. Step 4: Simplify right side
    72,054.88x = 4,491,522,564.75
  5. Step 5: Solve for x
    x = 4,491,522,564.75/72,054.88
  6. Step 6: Final answer
    x = 62,334.74

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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.