Home / 90,041.98-135,070.64-26,858.03

Finding the Fourth Proportional to 90,041.98, 135,070.64 and 26,858.03

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Solution

The fourth proportional to 90,041.98, 135,070.64 and 26,858.03 is: 40,289.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,041.98 : 135,070.64 = 26,858.03 : x
  2. Step 2: Convert to fraction form
    90,041.98/135,070.64 = 26,858.03/x
  3. Step 3: Cross multiply
    90,041.98x = 135,070.64 × 26,858.03
  4. Step 4: Simplify right side
    90,041.98x = 3,627,731,352.09
  5. Step 5: Solve for x
    x = 3,627,731,352.09/90,041.98
  6. Step 6: Final answer
    x = 40,289.33

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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.