Home / 77,812.32-116,542.80-46,581.60

Finding the Fourth Proportional to 77,812.32, 116,542.80 and 46,581.60

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Solution

The fourth proportional to 77,812.32, 116,542.80 and 46,581.60 is: 69,767.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,812.32 : 116,542.80 = 46,581.60 : x
  2. Step 2: Convert to fraction form
    77,812.32/116,542.80 = 46,581.60/x
  3. Step 3: Cross multiply
    77,812.32x = 116,542.80 × 46,581.60
  4. Step 4: Simplify right side
    77,812.32x = 5,428,750,092.48
  5. Step 5: Solve for x
    x = 5,428,750,092.48/77,812.32
  6. Step 6: Final answer
    x = 69,767.23

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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.