Home / 56,405.30-77,842.43-31,254.26

Finding the Fourth Proportional to 56,405.30, 77,842.43 and 31,254.26

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Solution

The fourth proportional to 56,405.30, 77,842.43 and 31,254.26 is: 43,132.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,405.30 : 77,842.43 = 31,254.26 : x
  2. Step 2: Convert to fraction form
    56,405.30/77,842.43 = 31,254.26/x
  3. Step 3: Cross multiply
    56,405.30x = 77,842.43 × 31,254.26
  4. Step 4: Simplify right side
    56,405.30x = 2,432,907,000.77
  5. Step 5: Solve for x
    x = 2,432,907,000.77/56,405.30
  6. Step 6: Final answer
    x = 43,132.60

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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.