Home / 42,084.14-63,115.40-12,495.11

Finding the Fourth Proportional to 42,084.14, 63,115.40 and 12,495.11

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Solution

The fourth proportional to 42,084.14, 63,115.40 and 12,495.11 is: 18,739.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,084.14 : 63,115.40 = 12,495.11 : x
  2. Step 2: Convert to fraction form
    42,084.14/63,115.40 = 12,495.11/x
  3. Step 3: Cross multiply
    42,084.14x = 63,115.40 × 12,495.11
  4. Step 4: Simplify right side
    42,084.14x = 788,633,865.69
  5. Step 5: Solve for x
    x = 788,633,865.69/42,084.14
  6. Step 6: Final answer
    x = 18,739.46

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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.