Home / 45,370.89-68,011.98-20,417.22

Finding the Fourth Proportional to 45,370.89, 68,011.98 and 20,417.22

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Solution

The fourth proportional to 45,370.89, 68,011.98 and 20,417.22 is: 30,605.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,370.89 : 68,011.98 = 20,417.22 : x
  2. Step 2: Convert to fraction form
    45,370.89/68,011.98 = 20,417.22/x
  3. Step 3: Cross multiply
    45,370.89x = 68,011.98 × 20,417.22
  4. Step 4: Simplify right side
    45,370.89x = 1,388,615,558.30
  5. Step 5: Solve for x
    x = 1,388,615,558.30/45,370.89
  6. Step 6: Final answer
    x = 30,605.87

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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.