Home / 68,931.05-103,415.33-26,812.77

Finding the Fourth Proportional to 68,931.05, 103,415.33 and 26,812.77

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Solution

The fourth proportional to 68,931.05, 103,415.33 and 26,812.77 is: 40,226.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,931.05 : 103,415.33 = 26,812.77 : x
  2. Step 2: Convert to fraction form
    68,931.05/103,415.33 = 26,812.77/x
  3. Step 3: Cross multiply
    68,931.05x = 103,415.33 × 26,812.77
  4. Step 4: Simplify right side
    68,931.05x = 2,772,851,718.70
  5. Step 5: Solve for x
    x = 2,772,851,718.70/68,931.05
  6. Step 6: Final answer
    x = 40,226.45

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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.