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Finding the Fourth Proportional to 85,601.37, 128,446.80 and 35,037.93

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Solution

The fourth proportional to 85,601.37, 128,446.80 and 35,037.93 is: 52,575.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,601.37 : 128,446.80 = 35,037.93 : x
  2. Step 2: Convert to fraction form
    85,601.37/128,446.80 = 35,037.93/x
  3. Step 3: Cross multiply
    85,601.37x = 128,446.80 × 35,037.93
  4. Step 4: Simplify right side
    85,601.37x = 4,500,509,987.12
  5. Step 5: Solve for x
    x = 4,500,509,987.12/85,601.37
  6. Step 6: Final answer
    x = 52,575.21

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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.