Home / 45,542.93-68,315.10-20,565.57

Finding the Fourth Proportional to 45,542.93, 68,315.10 and 20,565.57

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Solution

The fourth proportional to 45,542.93, 68,315.10 and 20,565.57 is: 30,848.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,542.93 : 68,315.10 = 20,565.57 : x
  2. Step 2: Convert to fraction form
    45,542.93/68,315.10 = 20,565.57/x
  3. Step 3: Cross multiply
    45,542.93x = 68,315.10 × 20,565.57
  4. Step 4: Simplify right side
    45,542.93x = 1,404,938,958.03
  5. Step 5: Solve for x
    x = 1,404,938,958.03/45,542.93
  6. Step 6: Final answer
    x = 30,848.67

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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.