Home / 81,632.80-122,332.38-46,499.86

Finding the Fourth Proportional to 81,632.80, 122,332.38 and 46,499.86

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Solution

The fourth proportional to 81,632.80, 122,332.38 and 46,499.86 is: 69,683.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,632.80 : 122,332.38 = 46,499.86 : x
  2. Step 2: Convert to fraction form
    81,632.80/122,332.38 = 46,499.86/x
  3. Step 3: Cross multiply
    81,632.80x = 122,332.38 × 46,499.86
  4. Step 4: Simplify right side
    81,632.80x = 5,688,438,543.47
  5. Step 5: Solve for x
    x = 5,688,438,543.47/81,632.80
  6. Step 6: Final answer
    x = 69,683.25

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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.