Home / 55,211.10-76,193.16-31,016.30

Finding the Fourth Proportional to 55,211.10, 76,193.16 and 31,016.30

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Solution

The fourth proportional to 55,211.10, 76,193.16 and 31,016.30 is: 42,803.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,211.10 : 76,193.16 = 31,016.30 : x
  2. Step 2: Convert to fraction form
    55,211.10/76,193.16 = 31,016.30/x
  3. Step 3: Cross multiply
    55,211.10x = 76,193.16 × 31,016.30
  4. Step 4: Simplify right side
    55,211.10x = 2,363,229,908.51
  5. Step 5: Solve for x
    x = 2,363,229,908.51/55,211.10
  6. Step 6: Final answer
    x = 42,803.53

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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.