Home / 56,297.76-77,559.38-39,271.64

Finding the Fourth Proportional to 56,297.76, 77,559.38 and 39,271.64

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Solution

The fourth proportional to 56,297.76, 77,559.38 and 39,271.64 is: 54,103.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,297.76 : 77,559.38 = 39,271.64 : x
  2. Step 2: Convert to fraction form
    56,297.76/77,559.38 = 39,271.64/x
  3. Step 3: Cross multiply
    56,297.76x = 77,559.38 × 39,271.64
  4. Step 4: Simplify right side
    56,297.76x = 3,045,884,049.98
  5. Step 5: Solve for x
    x = 3,045,884,049.98/56,297.76
  6. Step 6: Final answer
    x = 54,103.11

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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.