Home / 42,800.40-64,165.78-17,859.03

Finding the Fourth Proportional to 42,800.40, 64,165.78 and 17,859.03

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Solution

The fourth proportional to 42,800.40, 64,165.78 and 17,859.03 is: 26,774.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,800.40 : 64,165.78 = 17,859.03 : x
  2. Step 2: Convert to fraction form
    42,800.40/64,165.78 = 17,859.03/x
  3. Step 3: Cross multiply
    42,800.40x = 64,165.78 × 17,859.03
  4. Step 4: Simplify right side
    42,800.40x = 1,145,938,371.70
  5. Step 5: Solve for x
    x = 1,145,938,371.70/42,800.40
  6. Step 6: Final answer
    x = 26,774.01

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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.