Home / 56,765.84-78,340.44-31,615.28

Finding the Fourth Proportional to 56,765.84, 78,340.44 and 31,615.28

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Solution

The fourth proportional to 56,765.84, 78,340.44 and 31,615.28 is: 43,631.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,765.84 : 78,340.44 = 31,615.28 : x
  2. Step 2: Convert to fraction form
    56,765.84/78,340.44 = 31,615.28/x
  3. Step 3: Cross multiply
    56,765.84x = 78,340.44 × 31,615.28
  4. Step 4: Simplify right side
    56,765.84x = 2,476,754,945.92
  5. Step 5: Solve for x
    x = 2,476,754,945.92/56,765.84
  6. Step 6: Final answer
    x = 43,631.08

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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.