Home / 90,518.18-135,774.98-43,166.75

Finding the Fourth Proportional to 90,518.18, 135,774.98 and 43,166.75

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Solution

The fourth proportional to 90,518.18, 135,774.98 and 43,166.75 is: 64,749.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,518.18 : 135,774.98 = 43,166.75 : x
  2. Step 2: Convert to fraction form
    90,518.18/135,774.98 = 43,166.75/x
  3. Step 3: Cross multiply
    90,518.18x = 135,774.98 × 43,166.75
  4. Step 4: Simplify right side
    90,518.18x = 5,860,964,509.76
  5. Step 5: Solve for x
    x = 5,860,964,509.76/90,518.18
  6. Step 6: Final answer
    x = 64,749.03

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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.