Home / 56,763.83-78,340.21-31,272.80

Finding the Fourth Proportional to 56,763.83, 78,340.21 and 31,272.80

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Solution

The fourth proportional to 56,763.83, 78,340.21 and 31,272.80 is: 43,159.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,763.83 : 78,340.21 = 31,272.80 : x
  2. Step 2: Convert to fraction form
    56,763.83/78,340.21 = 31,272.80/x
  3. Step 3: Cross multiply
    56,763.83x = 78,340.21 × 31,272.80
  4. Step 4: Simplify right side
    56,763.83x = 2,449,917,249.40
  5. Step 5: Solve for x
    x = 2,449,917,249.40/56,763.83
  6. Step 6: Final answer
    x = 43,159.83

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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.