Home / 85,840.56-128,766.60-29,686.14

Finding the Fourth Proportional to 85,840.56, 128,766.60 and 29,686.14

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Solution

The fourth proportional to 85,840.56, 128,766.60 and 29,686.14 is: 44,531.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,840.56 : 128,766.60 = 29,686.14 : x
  2. Step 2: Convert to fraction form
    85,840.56/128,766.60 = 29,686.14/x
  3. Step 3: Cross multiply
    85,840.56x = 128,766.60 × 29,686.14
  4. Step 4: Simplify right side
    85,840.56x = 3,822,583,314.92
  5. Step 5: Solve for x
    x = 3,822,583,314.92/85,840.56
  6. Step 6: Final answer
    x = 44,531.20

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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.