Home / 48,861.46-67,430.47-28,718.05

Finding the Fourth Proportional to 48,861.46, 67,430.47 and 28,718.05

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Solution

The fourth proportional to 48,861.46, 67,430.47 and 28,718.05 is: 39,631.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,861.46 : 67,430.47 = 28,718.05 : x
  2. Step 2: Convert to fraction form
    48,861.46/67,430.47 = 28,718.05/x
  3. Step 3: Cross multiply
    48,861.46x = 67,430.47 × 28,718.05
  4. Step 4: Simplify right side
    48,861.46x = 1,936,471,608.98
  5. Step 5: Solve for x
    x = 1,936,471,608.98/48,861.46
  6. Step 6: Final answer
    x = 39,631.88

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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.