Home / 56,756.49-85,134.27-21,226.77

Finding the Fourth Proportional to 56,756.49, 85,134.27 and 21,226.77

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Solution

The fourth proportional to 56,756.49, 85,134.27 and 21,226.77 is: 31,839.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,756.49 : 85,134.27 = 21,226.77 : x
  2. Step 2: Convert to fraction form
    56,756.49/85,134.27 = 21,226.77/x
  3. Step 3: Cross multiply
    56,756.49x = 85,134.27 × 21,226.77
  4. Step 4: Simplify right side
    56,756.49x = 1,807,125,568.41
  5. Step 5: Solve for x
    x = 1,807,125,568.41/56,756.49
  6. Step 6: Final answer
    x = 31,839.98

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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.