Home / 67,800.09-101,688.57-17,880.68

Finding the Fourth Proportional to 67,800.09, 101,688.57 and 17,880.68

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Solution

The fourth proportional to 67,800.09, 101,688.57 and 17,880.68 is: 26,817.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,800.09 : 101,688.57 = 17,880.68 : x
  2. Step 2: Convert to fraction form
    67,800.09/101,688.57 = 17,880.68/x
  3. Step 3: Cross multiply
    67,800.09x = 101,688.57 × 17,880.68
  4. Step 4: Simplify right side
    67,800.09x = 1,818,260,271.38
  5. Step 5: Solve for x
    x = 1,818,260,271.38/67,800.09
  6. Step 6: Final answer
    x = 26,817.96

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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.