Home / 70,170.18-96,834.94-39,955.52

Finding the Fourth Proportional to 70,170.18, 96,834.94 and 39,955.52

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Solution

The fourth proportional to 70,170.18, 96,834.94 and 39,955.52 is: 55,138.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,170.18 : 96,834.94 = 39,955.52 : x
  2. Step 2: Convert to fraction form
    70,170.18/96,834.94 = 39,955.52/x
  3. Step 3: Cross multiply
    70,170.18x = 96,834.94 × 39,955.52
  4. Step 4: Simplify right side
    70,170.18x = 3,869,090,381.87
  5. Step 5: Solve for x
    x = 3,869,090,381.87/70,170.18
  6. Step 6: Final answer
    x = 55,138.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.