Home / 55,230.98-76,219.11-31,358.07

Finding the Fourth Proportional to 55,230.98, 76,219.11 and 31,358.07

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Solution

The fourth proportional to 55,230.98, 76,219.11 and 31,358.07 is: 43,274.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,230.98 : 76,219.11 = 31,358.07 : x
  2. Step 2: Convert to fraction form
    55,230.98/76,219.11 = 31,358.07/x
  3. Step 3: Cross multiply
    55,230.98x = 76,219.11 × 31,358.07
  4. Step 4: Simplify right side
    55,230.98x = 2,390,084,186.72
  5. Step 5: Solve for x
    x = 2,390,084,186.72/55,230.98
  6. Step 6: Final answer
    x = 43,274.34

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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.