Home / 55,129.50-76,085.97-53,628.36

Finding the Fourth Proportional to 55,129.50, 76,085.97 and 53,628.36

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Solution

The fourth proportional to 55,129.50, 76,085.97 and 53,628.36 is: 74,014.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,129.50 : 76,085.97 = 53,628.36 : x
  2. Step 2: Convert to fraction form
    55,129.50/76,085.97 = 53,628.36/x
  3. Step 3: Cross multiply
    55,129.50x = 76,085.97 × 53,628.36
  4. Step 4: Simplify right side
    55,129.50x = 4,080,365,790.11
  5. Step 5: Solve for x
    x = 4,080,365,790.11/55,129.50
  6. Step 6: Final answer
    x = 74,014.20

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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.