Home / 45,259.14-67,892.04-11,978.98

Finding the Fourth Proportional to 45,259.14, 67,892.04 and 11,978.98

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Solution

The fourth proportional to 45,259.14, 67,892.04 and 11,978.98 is: 17,969.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,259.14 : 67,892.04 = 11,978.98 : x
  2. Step 2: Convert to fraction form
    45,259.14/67,892.04 = 11,978.98/x
  3. Step 3: Cross multiply
    45,259.14x = 67,892.04 × 11,978.98
  4. Step 4: Simplify right side
    45,259.14x = 813,277,389.32
  5. Step 5: Solve for x
    x = 813,277,389.32/45,259.14
  6. Step 6: Final answer
    x = 17,969.35

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1.5x scale

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.