Home / 47,501.87-65,541.78-28,378.61

Finding the Fourth Proportional to 47,501.87, 65,541.78 and 28,378.61

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Solution

The fourth proportional to 47,501.87, 65,541.78 and 28,378.61 is: 39,156.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,501.87 : 65,541.78 = 28,378.61 : x
  2. Step 2: Convert to fraction form
    47,501.87/65,541.78 = 28,378.61/x
  3. Step 3: Cross multiply
    47,501.87x = 65,541.78 × 28,378.61
  4. Step 4: Simplify right side
    47,501.87x = 1,859,984,613.33
  5. Step 5: Solve for x
    x = 1,859,984,613.33/47,501.87
  6. Step 6: Final answer
    x = 39,156.03

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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.