Home / 64,028.80-95,985.60-40,643.20

Finding the Fourth Proportional to 64,028.80, 95,985.60 and 40,643.20

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Solution

The fourth proportional to 64,028.80, 95,985.60 and 40,643.20 is: 60,928.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,028.80 : 95,985.60 = 40,643.20 : x
  2. Step 2: Convert to fraction form
    64,028.80/95,985.60 = 40,643.20/x
  3. Step 3: Cross multiply
    64,028.80x = 95,985.60 × 40,643.20
  4. Step 4: Simplify right side
    64,028.80x = 3,901,161,937.92
  5. Step 5: Solve for x
    x = 3,901,161,937.92/64,028.80
  6. Step 6: Final answer
    x = 60,928.24

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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.