Home / 45,210-67,802.04-18,914.16

Finding the Fourth Proportional to 45,210, 67,802.04 and 18,914.16

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Solution

The fourth proportional to 45,210, 67,802.04 and 18,914.16 is: 28,365.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,210 : 67,802.04 = 18,914.16 : x
  2. Step 2: Convert to fraction form
    45,210/67,802.04 = 18,914.16/x
  3. Step 3: Cross multiply
    45,210x = 67,802.04 × 18,914.16
  4. Step 4: Simplify right side
    45,210x = 1,282,418,632.89
  5. Step 5: Solve for x
    x = 1,282,418,632.89/45,210
  6. Step 6: Final answer
    x = 28,365.82

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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.