Home / 56,441.30-77,889.10-31,290.80

Finding the Fourth Proportional to 56,441.30, 77,889.10 and 31,290.80

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Solution

The fourth proportional to 56,441.30, 77,889.10 and 31,290.80 is: 43,181.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,441.30 : 77,889.10 = 31,290.80 : x
  2. Step 2: Convert to fraction form
    56,441.30/77,889.10 = 31,290.80/x
  3. Step 3: Cross multiply
    56,441.30x = 77,889.10 × 31,290.80
  4. Step 4: Simplify right side
    56,441.30x = 2,437,212,250.28
  5. Step 5: Solve for x
    x = 2,437,212,250.28/56,441.30
  6. Step 6: Final answer
    x = 43,181.36

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1.5x scale

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.