Home / 74,694.21-103,071.67-42,862.43

Finding the Fourth Proportional to 74,694.21, 103,071.67 and 42,862.43

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Solution

The fourth proportional to 74,694.21, 103,071.67 and 42,862.43 is: 59,146.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,694.21 : 103,071.67 = 42,862.43 : x
  2. Step 2: Convert to fraction form
    74,694.21/103,071.67 = 42,862.43/x
  3. Step 3: Cross multiply
    74,694.21x = 103,071.67 × 42,862.43
  4. Step 4: Simplify right side
    74,694.21x = 4,417,901,617.84
  5. Step 5: Solve for x
    x = 4,417,901,617.84/74,694.21
  6. Step 6: Final answer
    x = 59,146.51

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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.