Home / 76,339.24-105,348.78-42,349.95

Finding the Fourth Proportional to 76,339.24, 105,348.78 and 42,349.95

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Solution

The fourth proportional to 76,339.24, 105,348.78 and 42,349.95 is: 58,443.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,339.24 : 105,348.78 = 42,349.95 : x
  2. Step 2: Convert to fraction form
    76,339.24/105,348.78 = 42,349.95/x
  3. Step 3: Cross multiply
    76,339.24x = 105,348.78 × 42,349.95
  4. Step 4: Simplify right side
    76,339.24x = 4,461,515,565.56
  5. Step 5: Solve for x
    x = 4,461,515,565.56/76,339.24
  6. Step 6: Final answer
    x = 58,443.28

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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.