Home / 64,968.28-89,653.70-40,782.22

Finding the Fourth Proportional to 64,968.28, 89,653.70 and 40,782.22

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Solution

The fourth proportional to 64,968.28, 89,653.70 and 40,782.22 is: 56,277.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,968.28 : 89,653.70 = 40,782.22 : x
  2. Step 2: Convert to fraction form
    64,968.28/89,653.70 = 40,782.22/x
  3. Step 3: Cross multiply
    64,968.28x = 89,653.70 × 40,782.22
  4. Step 4: Simplify right side
    64,968.28x = 3,656,276,795.04
  5. Step 5: Solve for x
    x = 3,656,276,795.04/64,968.28
  6. Step 6: Final answer
    x = 56,277.88

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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.