Home / 45,814.48-68,713.60-20,848.72

Finding the Fourth Proportional to 45,814.48, 68,713.60 and 20,848.72

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Solution

The fourth proportional to 45,814.48, 68,713.60 and 20,848.72 is: 31,269.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,814.48 : 68,713.60 = 20,848.72 : x
  2. Step 2: Convert to fraction form
    45,814.48/68,713.60 = 20,848.72/x
  3. Step 3: Cross multiply
    45,814.48x = 68,713.60 × 20,848.72
  4. Step 4: Simplify right side
    45,814.48x = 1,432,590,606.59
  5. Step 5: Solve for x
    x = 1,432,590,606.59/45,814.48
  6. Step 6: Final answer
    x = 31,269.38

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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.