Home / 49,039.76-67,688.76-28,908.32

Finding the Fourth Proportional to 49,039.76, 67,688.76 and 28,908.32

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Solution

The fourth proportional to 49,039.76, 67,688.76 and 28,908.32 is: 39,901.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,039.76 : 67,688.76 = 28,908.32 : x
  2. Step 2: Convert to fraction form
    49,039.76/67,688.76 = 28,908.32/x
  3. Step 3: Cross multiply
    49,039.76x = 67,688.76 × 28,908.32
  4. Step 4: Simplify right side
    49,039.76x = 1,956,768,334.48
  5. Step 5: Solve for x
    x = 1,956,768,334.48/49,039.76
  6. Step 6: Final answer
    x = 39,901.67

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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.