Home / 85,586.50-128,348.26-29,410.66

Finding the Fourth Proportional to 85,586.50, 128,348.26 and 29,410.66

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Solution

The fourth proportional to 85,586.50, 128,348.26 and 29,410.66 is: 44,105.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,586.50 : 128,348.26 = 29,410.66 : x
  2. Step 2: Convert to fraction form
    85,586.50/128,348.26 = 29,410.66/x
  3. Step 3: Cross multiply
    85,586.50x = 128,348.26 × 29,410.66
  4. Step 4: Simplify right side
    85,586.50x = 3,774,807,036.45
  5. Step 5: Solve for x
    x = 3,774,807,036.45/85,586.50
  6. Step 6: Final answer
    x = 44,105.17

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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.