Home / 92,771.04-139,141.20-30,432.48

Finding the Fourth Proportional to 92,771.04, 139,141.20 and 30,432.48

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Solution

The fourth proportional to 92,771.04, 139,141.20 and 30,432.48 is: 45,643.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,771.04 : 139,141.20 = 30,432.48 : x
  2. Step 2: Convert to fraction form
    92,771.04/139,141.20 = 30,432.48/x
  3. Step 3: Cross multiply
    92,771.04x = 139,141.20 × 30,432.48
  4. Step 4: Simplify right side
    92,771.04x = 4,234,411,786.18
  5. Step 5: Solve for x
    x = 4,234,411,786.18/92,771.04
  6. Step 6: Final answer
    x = 45,643.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.