Home / 56,603.22-78,113.16-31,112.37

Finding the Fourth Proportional to 56,603.22, 78,113.16 and 31,112.37

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Solution

The fourth proportional to 56,603.22, 78,113.16 and 31,112.37 is: 42,935.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,603.22 : 78,113.16 = 31,112.37 : x
  2. Step 2: Convert to fraction form
    56,603.22/78,113.16 = 31,112.37/x
  3. Step 3: Cross multiply
    56,603.22x = 78,113.16 × 31,112.37
  4. Step 4: Simplify right side
    56,603.22x = 2,430,285,535.79
  5. Step 5: Solve for x
    x = 2,430,285,535.79/56,603.22
  6. Step 6: Final answer
    x = 42,935.46

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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.