Home / 85,944.46-128,885.80-29,769.44

Finding the Fourth Proportional to 85,944.46, 128,885.80 and 29,769.44

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Solution

The fourth proportional to 85,944.46, 128,885.80 and 29,769.44 is: 44,643.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,944.46 : 128,885.80 = 29,769.44 : x
  2. Step 2: Convert to fraction form
    85,944.46/128,885.80 = 29,769.44/x
  3. Step 3: Cross multiply
    85,944.46x = 128,885.80 × 29,769.44
  4. Step 4: Simplify right side
    85,944.46x = 3,836,858,089.95
  5. Step 5: Solve for x
    x = 3,836,858,089.95/85,944.46
  6. Step 6: Final answer
    x = 44,643.46

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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.