Home / 70,976.40-97,949.52-39,143.76

Finding the Fourth Proportional to 70,976.40, 97,949.52 and 39,143.76

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Solution

The fourth proportional to 70,976.40, 97,949.52 and 39,143.76 is: 54,019.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,976.40 : 97,949.52 = 39,143.76 : x
  2. Step 2: Convert to fraction form
    70,976.40/97,949.52 = 39,143.76/x
  3. Step 3: Cross multiply
    70,976.40x = 97,949.52 × 39,143.76
  4. Step 4: Simplify right side
    70,976.40x = 3,834,112,503.00
  5. Step 5: Solve for x
    x = 3,834,112,503.00/70,976.40
  6. Step 6: Final answer
    x = 54,019.54

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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.