Home / 42,977.04-64,468.68-17,991.96

Finding the Fourth Proportional to 42,977.04, 64,468.68 and 17,991.96

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Solution

The fourth proportional to 42,977.04, 64,468.68 and 17,991.96 is: 26,989.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,977.04 : 64,468.68 = 17,991.96 : x
  2. Step 2: Convert to fraction form
    42,977.04/64,468.68 = 17,991.96/x
  3. Step 3: Cross multiply
    42,977.04x = 64,468.68 × 17,991.96
  4. Step 4: Simplify right side
    42,977.04x = 1,159,917,911.81
  5. Step 5: Solve for x
    x = 1,159,917,911.81/42,977.04
  6. Step 6: Final answer
    x = 26,989.25

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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.