Home / 45,403.47-68,108.40-12,123.36

Finding the Fourth Proportional to 45,403.47, 68,108.40 and 12,123.36

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Solution

The fourth proportional to 45,403.47, 68,108.40 and 12,123.36 is: 18,185.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,403.47 : 68,108.40 = 12,123.36 : x
  2. Step 2: Convert to fraction form
    45,403.47/68,108.40 = 12,123.36/x
  3. Step 3: Cross multiply
    45,403.47x = 68,108.40 × 12,123.36
  4. Step 4: Simplify right side
    45,403.47x = 825,702,652.22
  5. Step 5: Solve for x
    x = 825,702,652.22/45,403.47
  6. Step 6: Final answer
    x = 18,185.89

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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.