Home / 74,429.82-112,141.19-67,322.28

Finding the Fourth Proportional to 74,429.82, 112,141.19 and 67,322.28

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Solution

The fourth proportional to 74,429.82, 112,141.19 and 67,322.28 is: 101,432.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,429.82 : 112,141.19 = 67,322.28 : x
  2. Step 2: Convert to fraction form
    74,429.82/112,141.19 = 67,322.28/x
  3. Step 3: Cross multiply
    74,429.82x = 112,141.19 × 67,322.28
  4. Step 4: Simplify right side
    74,429.82x = 7,549,600,592.71
  5. Step 5: Solve for x
    x = 7,549,600,592.71/74,429.82
  6. Step 6: Final answer
    x = 101,432.47

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.