Home / 56,904.37-78,532.50-31,415.80

Finding the Fourth Proportional to 56,904.37, 78,532.50 and 31,415.80

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Solution

The fourth proportional to 56,904.37, 78,532.50 and 31,415.80 is: 43,356.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,904.37 : 78,532.50 = 31,415.80 : x
  2. Step 2: Convert to fraction form
    56,904.37/78,532.50 = 31,415.80/x
  3. Step 3: Cross multiply
    56,904.37x = 78,532.50 × 31,415.80
  4. Step 4: Simplify right side
    56,904.37x = 2,467,161,313.50
  5. Step 5: Solve for x
    x = 2,467,161,313.50/56,904.37
  6. Step 6: Final answer
    x = 43,356.27

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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.