Home / 74,384.24-102,649.87-40,392.42

Finding the Fourth Proportional to 74,384.24, 102,649.87 and 40,392.42

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Solution

The fourth proportional to 74,384.24, 102,649.87 and 40,392.42 is: 55,741.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,384.24 : 102,649.87 = 40,392.42 : x
  2. Step 2: Convert to fraction form
    74,384.24/102,649.87 = 40,392.42/x
  3. Step 3: Cross multiply
    74,384.24x = 102,649.87 × 40,392.42
  4. Step 4: Simplify right side
    74,384.24x = 4,146,276,561.00
  5. Step 5: Solve for x
    x = 4,146,276,561.00/74,384.24
  6. Step 6: Final answer
    x = 55,741.33

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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.