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Finding the Fourth Proportional to 85,773.98, 128,629.38 and 29,599.76

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Solution

The fourth proportional to 85,773.98, 128,629.38 and 29,599.76 is: 44,388.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,773.98 : 128,629.38 = 29,599.76 : x
  2. Step 2: Convert to fraction form
    85,773.98/128,629.38 = 29,599.76/x
  3. Step 3: Cross multiply
    85,773.98x = 128,629.38 × 29,599.76
  4. Step 4: Simplify right side
    85,773.98x = 3,807,398,776.95
  5. Step 5: Solve for x
    x = 3,807,398,776.95/85,773.98
  6. Step 6: Final answer
    x = 44,388.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.