Home / 43,135.40-64,681.22-19,741.80

Finding the Fourth Proportional to 43,135.40, 64,681.22 and 19,741.80

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Solution

The fourth proportional to 43,135.40, 64,681.22 and 19,741.80 is: 29,602.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,135.40 : 64,681.22 = 19,741.80 : x
  2. Step 2: Convert to fraction form
    43,135.40/64,681.22 = 19,741.80/x
  3. Step 3: Cross multiply
    43,135.40x = 64,681.22 × 19,741.80
  4. Step 4: Simplify right side
    43,135.40x = 1,276,923,709.00
  5. Step 5: Solve for x
    x = 1,276,923,709.00/43,135.40
  6. Step 6: Final answer
    x = 29,602.69

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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.