Home / 42,748.84-64,135.05-17,800.60

Finding the Fourth Proportional to 42,748.84, 64,135.05 and 17,800.60

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Solution

The fourth proportional to 42,748.84, 64,135.05 and 17,800.60 is: 26,705.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,748.84 : 64,135.05 = 17,800.60 : x
  2. Step 2: Convert to fraction form
    42,748.84/64,135.05 = 17,800.60/x
  3. Step 3: Cross multiply
    42,748.84x = 64,135.05 × 17,800.60
  4. Step 4: Simplify right side
    42,748.84x = 1,141,642,371.03
  5. Step 5: Solve for x
    x = 1,141,642,371.03/42,748.84
  6. Step 6: Final answer
    x = 26,705.81

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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.