Home / 76,336.90-105,345.21-42,348.52

Finding the Fourth Proportional to 76,336.90, 105,345.21 and 42,348.52

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Solution

The fourth proportional to 76,336.90, 105,345.21 and 42,348.52 is: 58,441.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,336.90 : 105,345.21 = 42,348.52 : x
  2. Step 2: Convert to fraction form
    76,336.90/105,345.21 = 42,348.52/x
  3. Step 3: Cross multiply
    76,336.90x = 105,345.21 × 42,348.52
  4. Step 4: Simplify right side
    76,336.90x = 4,461,213,732.59
  5. Step 5: Solve for x
    x = 4,461,213,732.59/76,336.90
  6. Step 6: Final answer
    x = 58,441.12

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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.