Home / 56,849.50-78,454.74-31,699

Finding the Fourth Proportional to 56,849.50, 78,454.74 and 31,699

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Solution

The fourth proportional to 56,849.50, 78,454.74 and 31,699 is: 43,745.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,849.50 : 78,454.74 = 31,699 : x
  2. Step 2: Convert to fraction form
    56,849.50/78,454.74 = 31,699/x
  3. Step 3: Cross multiply
    56,849.50x = 78,454.74 × 31,699
  4. Step 4: Simplify right side
    56,849.50x = 2,486,936,803.26
  5. Step 5: Solve for x
    x = 2,486,936,803.26/56,849.50
  6. Step 6: Final answer
    x = 43,745.97

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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.