Home / 77,626.77-107,136.29-43,638.06

Finding the Fourth Proportional to 77,626.77, 107,136.29 and 43,638.06

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Solution

The fourth proportional to 77,626.77, 107,136.29 and 43,638.06 is: 60,226.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,626.77 : 107,136.29 = 43,638.06 : x
  2. Step 2: Convert to fraction form
    77,626.77/107,136.29 = 43,638.06/x
  3. Step 3: Cross multiply
    77,626.77x = 107,136.29 × 43,638.06
  4. Step 4: Simplify right side
    77,626.77x = 4,675,219,851.20
  5. Step 5: Solve for x
    x = 4,675,219,851.20/77,626.77
  6. Step 6: Final answer
    x = 60,226.90

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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.