Home / 55,405.47-76,468.35-31,539.84

Finding the Fourth Proportional to 55,405.47, 76,468.35 and 31,539.84

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Solution

The fourth proportional to 55,405.47, 76,468.35 and 31,539.84 is: 43,529.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,405.47 : 76,468.35 = 31,539.84 : x
  2. Step 2: Convert to fraction form
    55,405.47/76,468.35 = 31,539.84/x
  3. Step 3: Cross multiply
    55,405.47x = 76,468.35 × 31,539.84
  4. Step 4: Simplify right side
    55,405.47x = 2,411,799,524.06
  5. Step 5: Solve for x
    x = 2,411,799,524.06/55,405.47
  6. Step 6: Final answer
    x = 43,529.99

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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.