Home / 45,358.90-68,038.48-13,769.20

Finding the Fourth Proportional to 45,358.90, 68,038.48 and 13,769.20

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Solution

The fourth proportional to 45,358.90, 68,038.48 and 13,769.20 is: 20,653.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,358.90 : 68,038.48 = 13,769.20 : x
  2. Step 2: Convert to fraction form
    45,358.90/68,038.48 = 13,769.20/x
  3. Step 3: Cross multiply
    45,358.90x = 68,038.48 × 13,769.20
  4. Step 4: Simplify right side
    45,358.90x = 936,835,438.82
  5. Step 5: Solve for x
    x = 936,835,438.82/45,358.90
  6. Step 6: Final answer
    x = 20,653.84

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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.