Home / 76,214.88-105,176.32-42,223.42

Finding the Fourth Proportional to 76,214.88, 105,176.32 and 42,223.42

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Solution

The fourth proportional to 76,214.88, 105,176.32 and 42,223.42 is: 58,268.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,214.88 : 105,176.32 = 42,223.42 : x
  2. Step 2: Convert to fraction form
    76,214.88/105,176.32 = 42,223.42/x
  3. Step 3: Cross multiply
    76,214.88x = 105,176.32 × 42,223.42
  4. Step 4: Simplify right side
    76,214.88x = 4,440,903,933.41
  5. Step 5: Solve for x
    x = 4,440,903,933.41/76,214.88
  6. Step 6: Final answer
    x = 58,268.20

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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.