Home / 55,327.47-76,346.78-31,449.48

Finding the Fourth Proportional to 55,327.47, 76,346.78 and 31,449.48

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Solution

The fourth proportional to 55,327.47, 76,346.78 and 31,449.48 is: 43,397.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,327.47 : 76,346.78 = 31,449.48 : x
  2. Step 2: Convert to fraction form
    55,327.47/76,346.78 = 31,449.48/x
  3. Step 3: Cross multiply
    55,327.47x = 76,346.78 × 31,449.48
  4. Step 4: Simplify right side
    55,327.47x = 2,401,066,530.67
  5. Step 5: Solve for x
    x = 2,401,066,530.67/55,327.47
  6. Step 6: Final answer
    x = 43,397.37

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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.