Home / 42,116.40-63,137.88-15,814.08

Finding the Fourth Proportional to 42,116.40, 63,137.88 and 15,814.08

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Solution

The fourth proportional to 42,116.40, 63,137.88 and 15,814.08 is: 23,707.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,116.40 : 63,137.88 = 15,814.08 : x
  2. Step 2: Convert to fraction form
    42,116.40/63,137.88 = 15,814.08/x
  3. Step 3: Cross multiply
    42,116.40x = 63,137.88 × 15,814.08
  4. Step 4: Simplify right side
    42,116.40x = 998,467,485.35
  5. Step 5: Solve for x
    x = 998,467,485.35/42,116.40
  6. Step 6: Final answer
    x = 23,707.33

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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.