Home / 74,143.68-102,322.62-42,322.83

Finding the Fourth Proportional to 74,143.68, 102,322.62 and 42,322.83

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Solution

The fourth proportional to 74,143.68, 102,322.62 and 42,322.83 is: 58,407.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,143.68 : 102,322.62 = 42,322.83 : x
  2. Step 2: Convert to fraction form
    74,143.68/102,322.62 = 42,322.83/x
  3. Step 3: Cross multiply
    74,143.68x = 102,322.62 × 42,322.83
  4. Step 4: Simplify right side
    74,143.68x = 4,330,582,851.41
  5. Step 5: Solve for x
    x = 4,330,582,851.41/74,143.68
  6. Step 6: Final answer
    x = 58,407.98

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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.