Home / 55,412.74-76,460.65-31,539.84

Finding the Fourth Proportional to 55,412.74, 76,460.65 and 31,539.84

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Solution

The fourth proportional to 55,412.74, 76,460.65 and 31,539.84 is: 43,519.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,412.74 : 76,460.65 = 31,539.84 : x
  2. Step 2: Convert to fraction form
    55,412.74/76,460.65 = 31,539.84/x
  3. Step 3: Cross multiply
    55,412.74x = 76,460.65 × 31,539.84
  4. Step 4: Simplify right side
    55,412.74x = 2,411,556,667.30
  5. Step 5: Solve for x
    x = 2,411,556,667.30/55,412.74
  6. Step 6: Final answer
    x = 43,519.90

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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.