Home / 45,558.60-68,345.07-12,279.99

Finding the Fourth Proportional to 45,558.60, 68,345.07 and 12,279.99

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Solution

The fourth proportional to 45,558.60, 68,345.07 and 12,279.99 is: 18,421.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,558.60 : 68,345.07 = 12,279.99 : x
  2. Step 2: Convert to fraction form
    45,558.60/68,345.07 = 12,279.99/x
  3. Step 3: Cross multiply
    45,558.60x = 68,345.07 × 12,279.99
  4. Step 4: Simplify right side
    45,558.60x = 839,276,776.15
  5. Step 5: Solve for x
    x = 839,276,776.15/45,558.60
  6. Step 6: Final answer
    x = 18,421.92

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1.5x scale

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.