Home / 56,764.50-78,337.44-31,614

Finding the Fourth Proportional to 56,764.50, 78,337.44 and 31,614

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Solution

The fourth proportional to 56,764.50, 78,337.44 and 31,614 is: 43,628.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,764.50 : 78,337.44 = 31,614 : x
  2. Step 2: Convert to fraction form
    56,764.50/78,337.44 = 31,614/x
  3. Step 3: Cross multiply
    56,764.50x = 78,337.44 × 31,614
  4. Step 4: Simplify right side
    56,764.50x = 2,476,559,828.16
  5. Step 5: Solve for x
    x = 2,476,559,828.16/56,764.50
  6. Step 6: Final answer
    x = 43,628.67

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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.