Home / 74,008.32-111,008.62-65,782.77

Finding the Fourth Proportional to 74,008.32, 111,008.62 and 65,782.77

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Solution

The fourth proportional to 74,008.32, 111,008.62 and 65,782.77 is: 98,670.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,008.32 : 111,008.62 = 65,782.77 : x
  2. Step 2: Convert to fraction form
    74,008.32/111,008.62 = 65,782.77/x
  3. Step 3: Cross multiply
    74,008.32x = 111,008.62 × 65,782.77
  4. Step 4: Simplify right side
    74,008.32x = 7,302,454,517.48
  5. Step 5: Solve for x
    x = 7,302,454,517.48/74,008.32
  6. Step 6: Final answer
    x = 98,670.72

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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.