Home / 77,076.12-106,362.80-43,084.68

Finding the Fourth Proportional to 77,076.12, 106,362.80 and 43,084.68

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Solution

The fourth proportional to 77,076.12, 106,362.80 and 43,084.68 is: 59,455.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,076.12 : 106,362.80 = 43,084.68 : x
  2. Step 2: Convert to fraction form
    77,076.12/106,362.80 = 43,084.68/x
  3. Step 3: Cross multiply
    77,076.12x = 106,362.80 × 43,084.68
  4. Step 4: Simplify right side
    77,076.12x = 4,582,607,201.90
  5. Step 5: Solve for x
    x = 4,582,607,201.90/77,076.12
  6. Step 6: Final answer
    x = 59,455.60

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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.