Home / 55,615.05-76,741.38-31,740.30

Finding the Fourth Proportional to 55,615.05, 76,741.38 and 31,740.30

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Solution

The fourth proportional to 55,615.05, 76,741.38 and 31,740.30 is: 43,797.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,615.05 : 76,741.38 = 31,740.30 : x
  2. Step 2: Convert to fraction form
    55,615.05/76,741.38 = 31,740.30/x
  3. Step 3: Cross multiply
    55,615.05x = 76,741.38 × 31,740.30
  4. Step 4: Simplify right side
    55,615.05x = 2,435,794,423.61
  5. Step 5: Solve for x
    x = 2,435,794,423.61/55,615.05
  6. Step 6: Final answer
    x = 43,797.40

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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.