Home / 55,112.08-76,056.24-31,237.80

Finding the Fourth Proportional to 55,112.08, 76,056.24 and 31,237.80

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Solution

The fourth proportional to 55,112.08, 76,056.24 and 31,237.80 is: 43,109.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,112.08 : 76,056.24 = 31,237.80 : x
  2. Step 2: Convert to fraction form
    55,112.08/76,056.24 = 31,237.80/x
  3. Step 3: Cross multiply
    55,112.08x = 76,056.24 × 31,237.80
  4. Step 4: Simplify right side
    55,112.08x = 2,375,829,613.87
  5. Step 5: Solve for x
    x = 2,375,829,613.87/55,112.08
  6. Step 6: Final answer
    x = 43,109.05

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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.