Home / 56,907.77-78,537.06-31,419.03

Finding the Fourth Proportional to 56,907.77, 78,537.06 and 31,419.03

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Solution

The fourth proportional to 56,907.77, 78,537.06 and 31,419.03 is: 43,360.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,907.77 : 78,537.06 = 31,419.03 : x
  2. Step 2: Convert to fraction form
    56,907.77/78,537.06 = 31,419.03/x
  3. Step 3: Cross multiply
    56,907.77x = 78,537.06 × 31,419.03
  4. Step 4: Simplify right side
    56,907.77x = 2,467,558,538.77
  5. Step 5: Solve for x
    x = 2,467,558,538.77/56,907.77
  6. Step 6: Final answer
    x = 43,360.67

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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.