Home / 56,553.78-78,047.73-31,403.46

Finding the Fourth Proportional to 56,553.78, 78,047.73 and 31,403.46

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Solution

The fourth proportional to 56,553.78, 78,047.73 and 31,403.46 is: 43,338.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,553.78 : 78,047.73 = 31,403.46 : x
  2. Step 2: Convert to fraction form
    56,553.78/78,047.73 = 31,403.46/x
  3. Step 3: Cross multiply
    56,553.78x = 78,047.73 × 31,403.46
  4. Step 4: Simplify right side
    56,553.78x = 2,450,968,767.15
  5. Step 5: Solve for x
    x = 2,450,968,767.15/56,553.78
  6. Step 6: Final answer
    x = 43,338.73

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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.