Home / 90,352.74-135,522.60-28,021.62

Finding the Fourth Proportional to 90,352.74, 135,522.60 and 28,021.62

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Solution

The fourth proportional to 90,352.74, 135,522.60 and 28,021.62 is: 42,030.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,352.74 : 135,522.60 = 28,021.62 : x
  2. Step 2: Convert to fraction form
    90,352.74/135,522.60 = 28,021.62/x
  3. Step 3: Cross multiply
    90,352.74x = 135,522.60 × 28,021.62
  4. Step 4: Simplify right side
    90,352.74x = 3,797,562,798.61
  5. Step 5: Solve for x
    x = 3,797,562,798.61/90,352.74
  6. Step 6: Final answer
    x = 42,030.41

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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.