Home / 56,419.44-77,861.88-31,271.28

Finding the Fourth Proportional to 56,419.44, 77,861.88 and 31,271.28

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Solution

The fourth proportional to 56,419.44, 77,861.88 and 31,271.28 is: 43,156.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,419.44 : 77,861.88 = 31,271.28 : x
  2. Step 2: Convert to fraction form
    56,419.44/77,861.88 = 31,271.28/x
  3. Step 3: Cross multiply
    56,419.44x = 77,861.88 × 31,271.28
  4. Step 4: Simplify right side
    56,419.44x = 2,434,840,650.81
  5. Step 5: Solve for x
    x = 2,434,840,650.81/56,419.44
  6. Step 6: Final answer
    x = 43,156.06

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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.