Home / 45,457.65-68,196.81-13,870.55

Finding the Fourth Proportional to 45,457.65, 68,196.81 and 13,870.55

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Solution

The fourth proportional to 45,457.65, 68,196.81 and 13,870.55 is: 20,808.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,457.65 : 68,196.81 = 13,870.55 : x
  2. Step 2: Convert to fraction form
    45,457.65/68,196.81 = 13,870.55/x
  3. Step 3: Cross multiply
    45,457.65x = 68,196.81 × 13,870.55
  4. Step 4: Simplify right side
    45,457.65x = 945,926,973.98
  5. Step 5: Solve for x
    x = 945,926,973.98/45,457.65
  6. Step 6: Final answer
    x = 20,808.97

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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.