Home / 53,396.49-80,143.25-28,457.85

Finding the Fourth Proportional to 53,396.49, 80,143.25 and 28,457.85

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Solution

The fourth proportional to 53,396.49, 80,143.25 and 28,457.85 is: 42,712.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,396.49 : 80,143.25 = 28,457.85 : x
  2. Step 2: Convert to fraction form
    53,396.49/80,143.25 = 28,457.85/x
  3. Step 3: Cross multiply
    53,396.49x = 80,143.25 × 28,457.85
  4. Step 4: Simplify right side
    53,396.49x = 2,280,704,587.01
  5. Step 5: Solve for x
    x = 2,280,704,587.01/53,396.49
  6. Step 6: Final answer
    x = 42,712.63

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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.