Home / 80,580.33-111,085.37-56,632.68

Finding the Fourth Proportional to 80,580.33, 111,085.37 and 56,632.68

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Solution

The fourth proportional to 80,580.33, 111,085.37 and 56,632.68 is: 78,071.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,580.33 : 111,085.37 = 56,632.68 : x
  2. Step 2: Convert to fraction form
    80,580.33/111,085.37 = 56,632.68/x
  3. Step 3: Cross multiply
    80,580.33x = 111,085.37 × 56,632.68
  4. Step 4: Simplify right side
    80,580.33x = 6,291,062,211.89
  5. Step 5: Solve for x
    x = 6,291,062,211.89/80,580.33
  6. Step 6: Final answer
    x = 78,071.93

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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.