Home / 56,904.88-78,533.96-31,415.80

Finding the Fourth Proportional to 56,904.88, 78,533.96 and 31,415.80

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Solution

The fourth proportional to 56,904.88, 78,533.96 and 31,415.80 is: 43,356.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,904.88 : 78,533.96 = 31,415.80 : x
  2. Step 2: Convert to fraction form
    56,904.88/78,533.96 = 31,415.80/x
  3. Step 3: Cross multiply
    56,904.88x = 78,533.96 × 31,415.80
  4. Step 4: Simplify right side
    56,904.88x = 2,467,207,180.57
  5. Step 5: Solve for x
    x = 2,467,207,180.57/56,904.88
  6. Step 6: Final answer
    x = 43,356.69

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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.