Home / 56,759.48-78,246.24-39,710.90

Finding the Fourth Proportional to 56,759.48, 78,246.24 and 39,710.90

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Solution

The fourth proportional to 56,759.48, 78,246.24 and 39,710.90 is: 54,743.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,759.48 : 78,246.24 = 39,710.90 : x
  2. Step 2: Convert to fraction form
    56,759.48/78,246.24 = 39,710.90/x
  3. Step 3: Cross multiply
    56,759.48x = 78,246.24 × 39,710.90
  4. Step 4: Simplify right side
    56,759.48x = 3,107,228,220.78
  5. Step 5: Solve for x
    x = 3,107,228,220.78/56,759.48
  6. Step 6: Final answer
    x = 54,743.78

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1.5x scale

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.