Home / 76,433.14-105,474.21-42,443.79

Finding the Fourth Proportional to 76,433.14, 105,474.21 and 42,443.79

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Solution

The fourth proportional to 76,433.14, 105,474.21 and 42,443.79 is: 58,570.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,433.14 : 105,474.21 = 42,443.79 : x
  2. Step 2: Convert to fraction form
    76,433.14/105,474.21 = 42,443.79/x
  3. Step 3: Cross multiply
    76,433.14x = 105,474.21 × 42,443.79
  4. Step 4: Simplify right side
    76,433.14x = 4,476,725,219.66
  5. Step 5: Solve for x
    x = 4,476,725,219.66/76,433.14
  6. Step 6: Final answer
    x = 58,570.47

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1.5x scale

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.