Home / 56,460.36-77,912.64-31,309.32

Finding the Fourth Proportional to 56,460.36, 77,912.64 and 31,309.32

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Solution

The fourth proportional to 56,460.36, 77,912.64 and 31,309.32 is: 43,205.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,460.36 : 77,912.64 = 31,309.32 : x
  2. Step 2: Convert to fraction form
    56,460.36/77,912.64 = 31,309.32/x
  3. Step 3: Cross multiply
    56,460.36x = 77,912.64 × 31,309.32
  4. Step 4: Simplify right side
    56,460.36x = 2,439,391,777.80
  5. Step 5: Solve for x
    x = 2,439,391,777.80/56,460.36
  6. Step 6: Final answer
    x = 43,205.39

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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.