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Finding the Fourth Proportional to 101,628.77, 152,441.75 and 31,508.07

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Solution

The fourth proportional to 101,628.77, 152,441.75 and 31,508.07 is: 47,261.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,628.77 : 152,441.75 = 31,508.07 : x
  2. Step 2: Convert to fraction form
    101,628.77/152,441.75 = 31,508.07/x
  3. Step 3: Cross multiply
    101,628.77x = 152,441.75 × 31,508.07
  4. Step 4: Simplify right side
    101,628.77x = 4,803,145,172.38
  5. Step 5: Solve for x
    x = 4,803,145,172.38/101,628.77
  6. Step 6: Final answer
    x = 47,261.67

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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.