Home / 43,134.75-64,705.77-11,970

Finding the Fourth Proportional to 43,134.75, 64,705.77 and 11,970

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Solution

The fourth proportional to 43,134.75, 64,705.77 and 11,970 is: 17,956.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,134.75 : 64,705.77 = 11,970 : x
  2. Step 2: Convert to fraction form
    43,134.75/64,705.77 = 11,970/x
  3. Step 3: Cross multiply
    43,134.75x = 64,705.77 × 11,970
  4. Step 4: Simplify right side
    43,134.75x = 774,528,066.90
  5. Step 5: Solve for x
    x = 774,528,066.90/43,134.75
  6. Step 6: Final answer
    x = 17,956.01

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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.