Home / 56,301.44-77,697.12-31,151.36

Finding the Fourth Proportional to 56,301.44, 77,697.12 and 31,151.36

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Solution

The fourth proportional to 56,301.44, 77,697.12 and 31,151.36 is: 42,989.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,301.44 : 77,697.12 = 31,151.36 : x
  2. Step 2: Convert to fraction form
    56,301.44/77,697.12 = 31,151.36/x
  3. Step 3: Cross multiply
    56,301.44x = 77,697.12 × 31,151.36
  4. Step 4: Simplify right side
    56,301.44x = 2,420,370,956.08
  5. Step 5: Solve for x
    x = 2,420,370,956.08/56,301.44
  6. Step 6: Final answer
    x = 42,989.50

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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.