Home / 47,347.12-65,387.62-39,309.88

Finding the Fourth Proportional to 47,347.12, 65,387.62 and 39,309.88

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Solution

The fourth proportional to 47,347.12, 65,387.62 and 39,309.88 is: 54,287.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,347.12 : 65,387.62 = 39,309.88 : x
  2. Step 2: Convert to fraction form
    47,347.12/65,387.62 = 39,309.88/x
  3. Step 3: Cross multiply
    47,347.12x = 65,387.62 × 39,309.88
  4. Step 4: Simplify right side
    47,347.12x = 2,570,379,495.69
  5. Step 5: Solve for x
    x = 2,570,379,495.69/47,347.12
  6. Step 6: Final answer
    x = 54,287.98

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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.