Home / 45,990.96-68,974.08-12,703.20

Finding the Fourth Proportional to 45,990.96, 68,974.08 and 12,703.20

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Solution

The fourth proportional to 45,990.96, 68,974.08 and 12,703.20 is: 19,051.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,990.96 : 68,974.08 = 12,703.20 : x
  2. Step 2: Convert to fraction form
    45,990.96/68,974.08 = 12,703.20/x
  3. Step 3: Cross multiply
    45,990.96x = 68,974.08 × 12,703.20
  4. Step 4: Simplify right side
    45,990.96x = 876,191,533.06
  5. Step 5: Solve for x
    x = 876,191,533.06/45,990.96
  6. Step 6: Final answer
    x = 19,051.39

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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.