Home / 45,355.51-68,031.10-13,764.16

Finding the Fourth Proportional to 45,355.51, 68,031.10 and 13,764.16

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Solution

The fourth proportional to 45,355.51, 68,031.10 and 13,764.16 is: 20,645.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,355.51 : 68,031.10 = 13,764.16 : x
  2. Step 2: Convert to fraction form
    45,355.51/68,031.10 = 13,764.16/x
  3. Step 3: Cross multiply
    45,355.51x = 68,031.10 × 13,764.16
  4. Step 4: Simplify right side
    45,355.51x = 936,390,945.38
  5. Step 5: Solve for x
    x = 936,390,945.38/45,355.51
  6. Step 6: Final answer
    x = 20,645.58

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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.