Home / 85,923.27-128,854.16-29,748.30

Finding the Fourth Proportional to 85,923.27, 128,854.16 and 29,748.30

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Solution

The fourth proportional to 85,923.27, 128,854.16 and 29,748.30 is: 44,611.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,923.27 : 128,854.16 = 29,748.30 : x
  2. Step 2: Convert to fraction form
    85,923.27/128,854.16 = 29,748.30/x
  3. Step 3: Cross multiply
    85,923.27x = 128,854.16 × 29,748.30
  4. Step 4: Simplify right side
    85,923.27x = 3,833,192,059.19
  5. Step 5: Solve for x
    x = 3,833,192,059.19/85,923.27
  6. Step 6: Final answer
    x = 44,611.80

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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.