Home / 85,731.23-128,594.42-29,570.29

Finding the Fourth Proportional to 85,731.23, 128,594.42 and 29,570.29

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Solution

The fourth proportional to 85,731.23, 128,594.42 and 29,570.29 is: 44,354.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,731.23 : 128,594.42 = 29,570.29 : x
  2. Step 2: Convert to fraction form
    85,731.23/128,594.42 = 29,570.29/x
  3. Step 3: Cross multiply
    85,731.23x = 128,594.42 × 29,570.29
  4. Step 4: Simplify right side
    85,731.23x = 3,802,573,933.33
  5. Step 5: Solve for x
    x = 3,802,573,933.33/85,731.23
  6. Step 6: Final answer
    x = 44,354.59

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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.