Home / 55,111.50-76,060.26-30,919.14

Finding the Fourth Proportional to 55,111.50, 76,060.26 and 30,919.14

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Solution

The fourth proportional to 55,111.50, 76,060.26 and 30,919.14 is: 42,672.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,111.50 : 76,060.26 = 30,919.14 : x
  2. Step 2: Convert to fraction form
    55,111.50/76,060.26 = 30,919.14/x
  3. Step 3: Cross multiply
    55,111.50x = 76,060.26 × 30,919.14
  4. Step 4: Simplify right side
    55,111.50x = 2,351,717,827.38
  5. Step 5: Solve for x
    x = 2,351,717,827.38/55,111.50
  6. Step 6: Final answer
    x = 42,672.00

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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.