Home / 64,883.25-89,457.77-54,143.57

Finding the Fourth Proportional to 64,883.25, 89,457.77 and 54,143.57

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Solution

The fourth proportional to 64,883.25, 89,457.77 and 54,143.57 is: 74,650.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,883.25 : 89,457.77 = 54,143.57 : x
  2. Step 2: Convert to fraction form
    64,883.25/89,457.77 = 54,143.57/x
  3. Step 3: Cross multiply
    64,883.25x = 89,457.77 × 54,143.57
  4. Step 4: Simplify right side
    64,883.25x = 4,843,563,391.04
  5. Step 5: Solve for x
    x = 4,843,563,391.04/64,883.25
  6. Step 6: Final answer
    x = 74,650.44

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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.