Home / 45,923.83-68,886.09-12,645.72

Finding the Fourth Proportional to 45,923.83, 68,886.09 and 12,645.72

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Solution

The fourth proportional to 45,923.83, 68,886.09 and 12,645.72 is: 18,968.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,923.83 : 68,886.09 = 12,645.72 : x
  2. Step 2: Convert to fraction form
    45,923.83/68,886.09 = 12,645.72/x
  3. Step 3: Cross multiply
    45,923.83x = 68,886.09 × 12,645.72
  4. Step 4: Simplify right side
    45,923.83x = 871,114,206.03
  5. Step 5: Solve for x
    x = 871,114,206.03/45,923.83
  6. Step 6: Final answer
    x = 18,968.68

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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.