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Finding the Fourth Proportional to 95,390.89, 143,089.38 and 47,980.09

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Solution

The fourth proportional to 95,390.89, 143,089.38 and 47,980.09 is: 71,971.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,390.89 : 143,089.38 = 47,980.09 : x
  2. Step 2: Convert to fraction form
    95,390.89/143,089.38 = 47,980.09/x
  3. Step 3: Cross multiply
    95,390.89x = 143,089.38 × 47,980.09
  4. Step 4: Simplify right side
    95,390.89x = 6,865,441,526.77
  5. Step 5: Solve for x
    x = 6,865,441,526.77/95,390.89
  6. Step 6: Final answer
    x = 71,971.67

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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.