Home / 42,069.41-63,090.46-13,981.92

Finding the Fourth Proportional to 42,069.41, 63,090.46 and 13,981.92

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Solution

The fourth proportional to 42,069.41, 63,090.46 and 13,981.92 is: 20,968.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,069.41 : 63,090.46 = 13,981.92 : x
  2. Step 2: Convert to fraction form
    42,069.41/63,090.46 = 13,981.92/x
  3. Step 3: Cross multiply
    42,069.41x = 63,090.46 × 13,981.92
  4. Step 4: Simplify right side
    42,069.41x = 882,125,764.48
  5. Step 5: Solve for x
    x = 882,125,764.48/42,069.41
  6. Step 6: Final answer
    x = 20,968.34

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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.