Home / 56,271.88-84,424.20-20,736.76

Finding the Fourth Proportional to 56,271.88, 84,424.20 and 20,736.76

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Solution

The fourth proportional to 56,271.88, 84,424.20 and 20,736.76 is: 31,111.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,271.88 : 84,424.20 = 20,736.76 : x
  2. Step 2: Convert to fraction form
    56,271.88/84,424.20 = 20,736.76/x
  3. Step 3: Cross multiply
    56,271.88x = 84,424.20 × 20,736.76
  4. Step 4: Simplify right side
    56,271.88x = 1,750,684,373.59
  5. Step 5: Solve for x
    x = 1,750,684,373.59/56,271.88
  6. Step 6: Final answer
    x = 31,111.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.