Home / 56,733.07-78,290.97-31,238.90

Finding the Fourth Proportional to 56,733.07, 78,290.97 and 31,238.90

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Solution

The fourth proportional to 56,733.07, 78,290.97 and 31,238.90 is: 43,109.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,733.07 : 78,290.97 = 31,238.90 : x
  2. Step 2: Convert to fraction form
    56,733.07/78,290.97 = 31,238.90/x
  3. Step 3: Cross multiply
    56,733.07x = 78,290.97 × 31,238.90
  4. Step 4: Simplify right side
    56,733.07x = 2,445,723,782.73
  5. Step 5: Solve for x
    x = 2,445,723,782.73/56,733.07
  6. Step 6: Final answer
    x = 43,109.31

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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.