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Finding the Fourth Proportional to 64,999.83, 89,690.77 and 36,315.89

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Solution

The fourth proportional to 64,999.83, 89,690.77 and 36,315.89 is: 50,110.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,999.83 : 89,690.77 = 36,315.89 : x
  2. Step 2: Convert to fraction form
    64,999.83/89,690.77 = 36,315.89/x
  3. Step 3: Cross multiply
    64,999.83x = 89,690.77 × 36,315.89
  4. Step 4: Simplify right side
    64,999.83x = 3,257,199,716.22
  5. Step 5: Solve for x
    x = 3,257,199,716.22/64,999.83
  6. Step 6: Final answer
    x = 50,110.89

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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.