Home / 64,665.64-89,262.18-40,807.84

Finding the Fourth Proportional to 64,665.64, 89,262.18 and 40,807.84

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Solution

The fourth proportional to 64,665.64, 89,262.18 and 40,807.84 is: 56,329.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,665.64 : 89,262.18 = 40,807.84 : x
  2. Step 2: Convert to fraction form
    64,665.64/89,262.18 = 40,807.84/x
  3. Step 3: Cross multiply
    64,665.64x = 89,262.18 × 40,807.84
  4. Step 4: Simplify right side
    64,665.64x = 3,642,596,759.49
  5. Step 5: Solve for x
    x = 3,642,596,759.49/64,665.64
  6. Step 6: Final answer
    x = 56,329.71

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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.