Home / 53,426.90-80,140.35-51,151.70

Finding the Fourth Proportional to 53,426.90, 80,140.35 and 51,151.70

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Solution

The fourth proportional to 53,426.90, 80,140.35 and 51,151.70 is: 76,727.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,426.90 : 80,140.35 = 51,151.70 : x
  2. Step 2: Convert to fraction form
    53,426.90/80,140.35 = 51,151.70/x
  3. Step 3: Cross multiply
    53,426.90x = 80,140.35 × 51,151.70
  4. Step 4: Simplify right side
    53,426.90x = 4,099,315,141.10
  5. Step 5: Solve for x
    x = 4,099,315,141.10/53,426.90
  6. Step 6: Final answer
    x = 76,727.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.