Home / 43,987.53-66,039.66-42,471.21

Finding the Fourth Proportional to 43,987.53, 66,039.66 and 42,471.21

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Solution

The fourth proportional to 43,987.53, 66,039.66 and 42,471.21 is: 63,763.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,987.53 : 66,039.66 = 42,471.21 : x
  2. Step 2: Convert to fraction form
    43,987.53/66,039.66 = 42,471.21/x
  3. Step 3: Cross multiply
    43,987.53x = 66,039.66 × 42,471.21
  4. Step 4: Simplify right side
    43,987.53x = 2,804,784,268.19
  5. Step 5: Solve for x
    x = 2,804,784,268.19/43,987.53
  6. Step 6: Final answer
    x = 63,763.17

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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.