Home / 56,895.58-78,515.88-31,745.08

Finding the Fourth Proportional to 56,895.58, 78,515.88 and 31,745.08

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Solution

The fourth proportional to 56,895.58, 78,515.88 and 31,745.08 is: 43,808.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,895.58 : 78,515.88 = 31,745.08 : x
  2. Step 2: Convert to fraction form
    56,895.58/78,515.88 = 31,745.08/x
  3. Step 3: Cross multiply
    56,895.58x = 78,515.88 × 31,745.08
  4. Step 4: Simplify right side
    56,895.58x = 2,492,492,891.87
  5. Step 5: Solve for x
    x = 2,492,492,891.87/56,895.58
  6. Step 6: Final answer
    x = 43,808.20

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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.