Home / 74,639.52-103,016.64-42,808.80

Finding the Fourth Proportional to 74,639.52, 103,016.64 and 42,808.80

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Solution

The fourth proportional to 74,639.52, 103,016.64 and 42,808.80 is: 59,084.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,639.52 : 103,016.64 = 42,808.80 : x
  2. Step 2: Convert to fraction form
    74,639.52/103,016.64 = 42,808.80/x
  3. Step 3: Cross multiply
    74,639.52x = 103,016.64 × 42,808.80
  4. Step 4: Simplify right side
    74,639.52x = 4,410,018,738.43
  5. Step 5: Solve for x
    x = 4,410,018,738.43/74,639.52
  6. Step 6: Final answer
    x = 59,084.23

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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.