Home / 53,965.80-80,927.10-18,887.40

Finding the Fourth Proportional to 53,965.80, 80,927.10 and 18,887.40

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Solution

The fourth proportional to 53,965.80, 80,927.10 and 18,887.40 is: 28,323.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,965.80 : 80,927.10 = 18,887.40 : x
  2. Step 2: Convert to fraction form
    53,965.80/80,927.10 = 18,887.40/x
  3. Step 3: Cross multiply
    53,965.80x = 80,927.10 × 18,887.40
  4. Step 4: Simplify right side
    53,965.80x = 1,528,502,508.54
  5. Step 5: Solve for x
    x = 1,528,502,508.54/53,965.80
  6. Step 6: Final answer
    x = 28,323.54

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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.