Home / 51,639.24-71,285.76-39,698.40

Finding the Fourth Proportional to 51,639.24, 71,285.76 and 39,698.40

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Solution

The fourth proportional to 51,639.24, 71,285.76 and 39,698.40 is: 54,801.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,639.24 : 71,285.76 = 39,698.40 : x
  2. Step 2: Convert to fraction form
    51,639.24/71,285.76 = 39,698.40/x
  3. Step 3: Cross multiply
    51,639.24x = 71,285.76 × 39,698.40
  4. Step 4: Simplify right side
    51,639.24x = 2,829,930,614.78
  5. Step 5: Solve for x
    x = 2,829,930,614.78/51,639.24
  6. Step 6: Final answer
    x = 54,801.94

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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.