Home / 74,521.81-102,839.61-42,262.57

Finding the Fourth Proportional to 74,521.81, 102,839.61 and 42,262.57

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Solution

The fourth proportional to 74,521.81, 102,839.61 and 42,262.57 is: 58,322.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,521.81 : 102,839.61 = 42,262.57 : x
  2. Step 2: Convert to fraction form
    74,521.81/102,839.61 = 42,262.57/x
  3. Step 3: Cross multiply
    74,521.81x = 102,839.61 × 42,262.57
  4. Step 4: Simplify right side
    74,521.81x = 4,346,266,216.40
  5. Step 5: Solve for x
    x = 4,346,266,216.40/74,521.81
  6. Step 6: Final answer
    x = 58,322.07

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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.