Home / 92,879.35-128,212.74-62,705.54

Finding the Fourth Proportional to 92,879.35, 128,212.74 and 62,705.54

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Solution

The fourth proportional to 92,879.35, 128,212.74 and 62,705.54 is: 86,560.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,879.35 : 128,212.74 = 62,705.54 : x
  2. Step 2: Convert to fraction form
    92,879.35/128,212.74 = 62,705.54/x
  3. Step 3: Cross multiply
    92,879.35x = 128,212.74 × 62,705.54
  4. Step 4: Simplify right side
    92,879.35x = 8,039,648,873.12
  5. Step 5: Solve for x
    x = 8,039,648,873.12/92,879.35
  6. Step 6: Final answer
    x = 86,560.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.