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Finding the Fourth Proportional to 85,898.40, 128,850.84 and 23,573.76

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Solution

The fourth proportional to 85,898.40, 128,850.84 and 23,573.76 is: 35,361.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,898.40 : 128,850.84 = 23,573.76 : x
  2. Step 2: Convert to fraction form
    85,898.40/128,850.84 = 23,573.76/x
  3. Step 3: Cross multiply
    85,898.40x = 128,850.84 × 23,573.76
  4. Step 4: Simplify right side
    85,898.40x = 3,037,498,777.96
  5. Step 5: Solve for x
    x = 3,037,498,777.96/85,898.40
  6. Step 6: Final answer
    x = 35,361.53

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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.