Home / 74,146.63-102,322.35-42,314.84

Finding the Fourth Proportional to 74,146.63, 102,322.35 and 42,314.84

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Solution

The fourth proportional to 74,146.63, 102,322.35 and 42,314.84 is: 58,394.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,146.63 : 102,322.35 = 42,314.84 : x
  2. Step 2: Convert to fraction form
    74,146.63/102,322.35 = 42,314.84/x
  3. Step 3: Cross multiply
    74,146.63x = 102,322.35 × 42,314.84
  4. Step 4: Simplify right side
    74,146.63x = 4,329,753,657.10
  5. Step 5: Solve for x
    x = 4,329,753,657.10/74,146.63
  6. Step 6: Final answer
    x = 58,394.48

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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.