Home / 42,453.12-63,663.79-12,461.19

Finding the Fourth Proportional to 42,453.12, 63,663.79 and 12,461.19

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Solution

The fourth proportional to 42,453.12, 63,663.79 and 12,461.19 is: 18,687.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,453.12 : 63,663.79 = 12,461.19 : x
  2. Step 2: Convert to fraction form
    42,453.12/63,663.79 = 12,461.19/x
  3. Step 3: Cross multiply
    42,453.12x = 63,663.79 × 12,461.19
  4. Step 4: Simplify right side
    42,453.12x = 793,326,583.31
  5. Step 5: Solve for x
    x = 793,326,583.31/42,453.12
  6. Step 6: Final answer
    x = 18,687.12

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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.