Home / 42,845.79-64,281.81-19,173.26

Finding the Fourth Proportional to 42,845.79, 64,281.81 and 19,173.26

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Solution

The fourth proportional to 42,845.79, 64,281.81 and 19,173.26 is: 28,765.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,845.79 : 64,281.81 = 19,173.26 : x
  2. Step 2: Convert to fraction form
    42,845.79/64,281.81 = 19,173.26/x
  3. Step 3: Cross multiply
    42,845.79x = 64,281.81 × 19,173.26
  4. Step 4: Simplify right side
    42,845.79x = 1,232,491,534.99
  5. Step 5: Solve for x
    x = 1,232,491,534.99/42,845.79
  6. Step 6: Final answer
    x = 28,765.76

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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.