Home / 77,679.06-116,570.46-42,643.32

Finding the Fourth Proportional to 77,679.06, 116,570.46 and 42,643.32

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Solution

The fourth proportional to 77,679.06, 116,570.46 and 42,643.32 is: 63,993.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,679.06 : 116,570.46 = 42,643.32 : x
  2. Step 2: Convert to fraction form
    77,679.06/116,570.46 = 42,643.32/x
  3. Step 3: Cross multiply
    77,679.06x = 116,570.46 × 42,643.32
  4. Step 4: Simplify right side
    77,679.06x = 4,970,951,428.33
  5. Step 5: Solve for x
    x = 4,970,951,428.33/77,679.06
  6. Step 6: Final answer
    x = 63,993.45

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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.