Home / 55,430.06-76,490.61-31,556.66

Finding the Fourth Proportional to 55,430.06, 76,490.61 and 31,556.66

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Solution

The fourth proportional to 55,430.06, 76,490.61 and 31,556.66 is: 43,546.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,430.06 : 76,490.61 = 31,556.66 : x
  2. Step 2: Convert to fraction form
    55,430.06/76,490.61 = 31,556.66/x
  3. Step 3: Cross multiply
    55,430.06x = 76,490.61 × 31,556.66
  4. Step 4: Simplify right side
    55,430.06x = 2,413,788,172.96
  5. Step 5: Solve for x
    x = 2,413,788,172.96/55,430.06
  6. Step 6: Final answer
    x = 43,546.56

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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.