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Finding the Fourth Proportional to 90,445.89, 135,666.72 and 23,890.67

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Solution

The fourth proportional to 90,445.89, 135,666.72 and 23,890.67 is: 35,835.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,445.89 : 135,666.72 = 23,890.67 : x
  2. Step 2: Convert to fraction form
    90,445.89/135,666.72 = 23,890.67/x
  3. Step 3: Cross multiply
    90,445.89x = 135,666.72 × 23,890.67
  4. Step 4: Simplify right side
    90,445.89x = 3,241,168,159.17
  5. Step 5: Solve for x
    x = 3,241,168,159.17/90,445.89
  6. Step 6: Final answer
    x = 35,835.44

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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.