Home / 76,349.04-105,340.14-49,492.68

Finding the Fourth Proportional to 76,349.04, 105,340.14 and 49,492.68

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Solution

The fourth proportional to 76,349.04, 105,340.14 and 49,492.68 is: 68,285.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,349.04 : 105,340.14 = 49,492.68 : x
  2. Step 2: Convert to fraction form
    76,349.04/105,340.14 = 49,492.68/x
  3. Step 3: Cross multiply
    76,349.04x = 105,340.14 × 49,492.68
  4. Step 4: Simplify right side
    76,349.04x = 5,213,565,840.18
  5. Step 5: Solve for x
    x = 5,213,565,840.18/76,349.04
  6. Step 6: Final answer
    x = 68,285.94

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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.