Home / 76,364.02-105,380.73-42,371.78

Finding the Fourth Proportional to 76,364.02, 105,380.73 and 42,371.78

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Solution

The fourth proportional to 76,364.02, 105,380.73 and 42,371.78 is: 58,472.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,364.02 : 105,380.73 = 42,371.78 : x
  2. Step 2: Convert to fraction form
    76,364.02/105,380.73 = 42,371.78/x
  3. Step 3: Cross multiply
    76,364.02x = 105,380.73 × 42,371.78
  4. Step 4: Simplify right side
    76,364.02x = 4,465,169,107.80
  5. Step 5: Solve for x
    x = 4,465,169,107.80/76,364.02
  6. Step 6: Final answer
    x = 58,472.16

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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.