Home / 56,515.80-84,857.40-31,605.60

Finding the Fourth Proportional to 56,515.80, 84,857.40 and 31,605.60

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Solution

The fourth proportional to 56,515.80, 84,857.40 and 31,605.60 is: 47,455.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,515.80 : 84,857.40 = 31,605.60 : x
  2. Step 2: Convert to fraction form
    56,515.80/84,857.40 = 31,605.60/x
  3. Step 3: Cross multiply
    56,515.80x = 84,857.40 × 31,605.60
  4. Step 4: Simplify right side
    56,515.80x = 2,681,969,041.44
  5. Step 5: Solve for x
    x = 2,681,969,041.44/56,515.80
  6. Step 6: Final answer
    x = 47,455.21

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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.