Home / 56,810.96-78,399.24-31,661.36

Finding the Fourth Proportional to 56,810.96, 78,399.24 and 31,661.36

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Solution

The fourth proportional to 56,810.96, 78,399.24 and 31,661.36 is: 43,692.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,810.96 : 78,399.24 = 31,661.36 : x
  2. Step 2: Convert to fraction form
    56,810.96/78,399.24 = 31,661.36/x
  3. Step 3: Cross multiply
    56,810.96x = 78,399.24 × 31,661.36
  4. Step 4: Simplify right side
    56,810.96x = 2,482,226,561.37
  5. Step 5: Solve for x
    x = 2,482,226,561.37/56,810.96
  6. Step 6: Final answer
    x = 43,692.74

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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.