Home / 55,905.30-77,148.72-30,412.44

Finding the Fourth Proportional to 55,905.30, 77,148.72 and 30,412.44

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Solution

The fourth proportional to 55,905.30, 77,148.72 and 30,412.44 is: 41,968.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,905.30 : 77,148.72 = 30,412.44 : x
  2. Step 2: Convert to fraction form
    55,905.30/77,148.72 = 30,412.44/x
  3. Step 3: Cross multiply
    55,905.30x = 77,148.72 × 30,412.44
  4. Step 4: Simplify right side
    55,905.30x = 2,346,280,818.08
  5. Step 5: Solve for x
    x = 2,346,280,818.08/55,905.30
  6. Step 6: Final answer
    x = 41,968.84

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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.