Home / 56,872.56-78,488.54-31,383.99

Finding the Fourth Proportional to 56,872.56, 78,488.54 and 31,383.99

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Solution

The fourth proportional to 56,872.56, 78,488.54 and 31,383.99 is: 43,312.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,872.56 : 78,488.54 = 31,383.99 : x
  2. Step 2: Convert to fraction form
    56,872.56/78,488.54 = 31,383.99/x
  3. Step 3: Cross multiply
    56,872.56x = 78,488.54 × 31,383.99
  4. Step 4: Simplify right side
    56,872.56x = 2,463,283,554.47
  5. Step 5: Solve for x
    x = 2,463,283,554.47/56,872.56
  6. Step 6: Final answer
    x = 43,312.34

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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.