Home / 45,966.24-68,936.64-12,678.48

Finding the Fourth Proportional to 45,966.24, 68,936.64 and 12,678.48

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Solution

The fourth proportional to 45,966.24, 68,936.64 and 12,678.48 is: 19,014.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,966.24 : 68,936.64 = 12,678.48 : x
  2. Step 2: Convert to fraction form
    45,966.24/68,936.64 = 12,678.48/x
  3. Step 3: Cross multiply
    45,966.24x = 68,936.64 × 12,678.48
  4. Step 4: Simplify right side
    45,966.24x = 874,011,811.51
  5. Step 5: Solve for x
    x = 874,011,811.51/45,966.24
  6. Step 6: Final answer
    x = 19,014.21

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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.