Home / 90,017.08-135,023.88-26,879.98

Finding the Fourth Proportional to 90,017.08, 135,023.88 and 26,879.98

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Solution

The fourth proportional to 90,017.08, 135,023.88 and 26,879.98 is: 40,319.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,017.08 : 135,023.88 = 26,879.98 : x
  2. Step 2: Convert to fraction form
    90,017.08/135,023.88 = 26,879.98/x
  3. Step 3: Cross multiply
    90,017.08x = 135,023.88 × 26,879.98
  4. Step 4: Simplify right side
    90,017.08x = 3,629,439,059.13
  5. Step 5: Solve for x
    x = 3,629,439,059.13/90,017.08
  6. Step 6: Final answer
    x = 40,319.45

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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.