Home / 77,118.64-106,422.96-43,126.72

Finding the Fourth Proportional to 77,118.64, 106,422.96 and 43,126.72

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Solution

The fourth proportional to 77,118.64, 106,422.96 and 43,126.72 is: 59,514.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,118.64 : 106,422.96 = 43,126.72 : x
  2. Step 2: Convert to fraction form
    77,118.64/106,422.96 = 43,126.72/x
  3. Step 3: Cross multiply
    77,118.64x = 106,422.96 × 43,126.72
  4. Step 4: Simplify right side
    77,118.64x = 4,589,673,197.49
  5. Step 5: Solve for x
    x = 4,589,673,197.49/77,118.64
  6. Step 6: Final answer
    x = 59,514.45

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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.