Home / 53,451.42-80,153.43-28,486.81

Finding the Fourth Proportional to 53,451.42, 80,153.43 and 28,486.81

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Solution

The fourth proportional to 53,451.42, 80,153.43 and 28,486.81 is: 42,717.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,451.42 : 80,153.43 = 28,486.81 : x
  2. Step 2: Convert to fraction form
    53,451.42/80,153.43 = 28,486.81/x
  3. Step 3: Cross multiply
    53,451.42x = 80,153.43 × 28,486.81
  4. Step 4: Simplify right side
    53,451.42x = 2,283,315,531.26
  5. Step 5: Solve for x
    x = 2,283,315,531.26/53,451.42
  6. Step 6: Final answer
    x = 42,717.58

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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.