Home / 76,435.14-105,476.97-42,445.79

Finding the Fourth Proportional to 76,435.14, 105,476.97 and 42,445.79

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Solution

The fourth proportional to 76,435.14, 105,476.97 and 42,445.79 is: 58,573.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,435.14 : 105,476.97 = 42,445.79 : x
  2. Step 2: Convert to fraction form
    76,435.14/105,476.97 = 42,445.79/x
  3. Step 3: Cross multiply
    76,435.14x = 105,476.97 × 42,445.79
  4. Step 4: Simplify right side
    76,435.14x = 4,477,053,318.46
  5. Step 5: Solve for x
    x = 4,477,053,318.46/76,435.14
  6. Step 6: Final answer
    x = 58,573.23

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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.