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Finding the Fourth Proportional to 71,969.41, 107,954.12 and 70,001.11

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Solution

The fourth proportional to 71,969.41, 107,954.12 and 70,001.11 is: 105,001.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,969.41 : 107,954.12 = 70,001.11 : x
  2. Step 2: Convert to fraction form
    71,969.41/107,954.12 = 70,001.11/x
  3. Step 3: Cross multiply
    71,969.41x = 107,954.12 × 70,001.11
  4. Step 4: Simplify right side
    71,969.41x = 7,556,908,145.26
  5. Step 5: Solve for x
    x = 7,556,908,145.26/71,969.41
  6. Step 6: Final answer
    x = 105,001.67

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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.