Home / 42,758.60-64,136.46-19,368.68

Finding the Fourth Proportional to 42,758.60, 64,136.46 and 19,368.68

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Solution

The fourth proportional to 42,758.60, 64,136.46 and 19,368.68 is: 29,052.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,758.60 : 64,136.46 = 19,368.68 : x
  2. Step 2: Convert to fraction form
    42,758.60/64,136.46 = 19,368.68/x
  3. Step 3: Cross multiply
    42,758.60x = 64,136.46 × 19,368.68
  4. Step 4: Simplify right side
    42,758.60x = 1,242,238,570.07
  5. Step 5: Solve for x
    x = 1,242,238,570.07/42,758.60
  6. Step 6: Final answer
    x = 29,052.37

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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.