Home / 45,783.78-68,667.80-13,762.37

Finding the Fourth Proportional to 45,783.78, 68,667.80 and 13,762.37

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Solution

The fourth proportional to 45,783.78, 68,667.80 and 13,762.37 is: 20,641.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,783.78 : 68,667.80 = 13,762.37 : x
  2. Step 2: Convert to fraction form
    45,783.78/68,667.80 = 13,762.37/x
  3. Step 3: Cross multiply
    45,783.78x = 68,667.80 × 13,762.37
  4. Step 4: Simplify right side
    45,783.78x = 945,031,258.54
  5. Step 5: Solve for x
    x = 945,031,258.54/45,783.78
  6. Step 6: Final answer
    x = 20,641.18

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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.