Home / 92,023.75-138,068.03-45,309.43

Finding the Fourth Proportional to 92,023.75, 138,068.03 and 45,309.43

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Solution

The fourth proportional to 92,023.75, 138,068.03 and 45,309.43 is: 67,980.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,023.75 : 138,068.03 = 45,309.43 : x
  2. Step 2: Convert to fraction form
    92,023.75/138,068.03 = 45,309.43/x
  3. Step 3: Cross multiply
    92,023.75x = 138,068.03 × 45,309.43
  4. Step 4: Simplify right side
    92,023.75x = 6,255,783,740.52
  5. Step 5: Solve for x
    x = 6,255,783,740.52/92,023.75
  6. Step 6: Final answer
    x = 67,980.10

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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.