Home / 53,899.35-74,375.40-31,245.45

Finding the Fourth Proportional to 53,899.35, 74,375.40 and 31,245.45

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Solution

The fourth proportional to 53,899.35, 74,375.40 and 31,245.45 is: 43,115.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,899.35 : 74,375.40 = 31,245.45 : x
  2. Step 2: Convert to fraction form
    53,899.35/74,375.40 = 31,245.45/x
  3. Step 3: Cross multiply
    53,899.35x = 74,375.40 × 31,245.45
  4. Step 4: Simplify right side
    53,899.35x = 2,323,892,841.93
  5. Step 5: Solve for x
    x = 2,323,892,841.93/53,899.35
  6. Step 6: Final answer
    x = 43,115.41

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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.