Home / 42,861.81-64,307.87-19,167.27

Finding the Fourth Proportional to 42,861.81, 64,307.87 and 19,167.27

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Solution

The fourth proportional to 42,861.81, 64,307.87 and 19,167.27 is: 28,757.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,861.81 : 64,307.87 = 19,167.27 : x
  2. Step 2: Convert to fraction form
    42,861.81/64,307.87 = 19,167.27/x
  3. Step 3: Cross multiply
    42,861.81x = 64,307.87 × 19,167.27
  4. Step 4: Simplify right side
    42,861.81x = 1,232,606,211.58
  5. Step 5: Solve for x
    x = 1,232,606,211.58/42,861.81
  6. Step 6: Final answer
    x = 28,757.68

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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.