Home / 56,813.04-78,319.92-39,764.52

Finding the Fourth Proportional to 56,813.04, 78,319.92 and 39,764.52

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Solution

The fourth proportional to 56,813.04, 78,319.92 and 39,764.52 is: 54,817.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,813.04 : 78,319.92 = 39,764.52 : x
  2. Step 2: Convert to fraction form
    56,813.04/78,319.92 = 39,764.52/x
  3. Step 3: Cross multiply
    56,813.04x = 78,319.92 × 39,764.52
  4. Step 4: Simplify right side
    56,813.04x = 3,114,354,025.24
  5. Step 5: Solve for x
    x = 3,114,354,025.24/56,813.04
  6. Step 6: Final answer
    x = 54,817.59

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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.