Home / 77,278.64-115,873.50-41,210.60

Finding the Fourth Proportional to 77,278.64, 115,873.50 and 41,210.60

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Solution

The fourth proportional to 77,278.64, 115,873.50 and 41,210.60 is: 61,792.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,278.64 : 115,873.50 = 41,210.60 : x
  2. Step 2: Convert to fraction form
    77,278.64/115,873.50 = 41,210.60/x
  3. Step 3: Cross multiply
    77,278.64x = 115,873.50 × 41,210.60
  4. Step 4: Simplify right side
    77,278.64x = 4,775,216,459.10
  5. Step 5: Solve for x
    x = 4,775,216,459.10/77,278.64
  6. Step 6: Final answer
    x = 61,792.19

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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.