Home / 58,739.18-81,059.79-31,881.45

Finding the Fourth Proportional to 58,739.18, 81,059.79 and 31,881.45

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Solution

The fourth proportional to 58,739.18, 81,059.79 and 31,881.45 is: 43,996.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,739.18 : 81,059.79 = 31,881.45 : x
  2. Step 2: Convert to fraction form
    58,739.18/81,059.79 = 31,881.45/x
  3. Step 3: Cross multiply
    58,739.18x = 81,059.79 × 31,881.45
  4. Step 4: Simplify right side
    58,739.18x = 2,584,303,430.13
  5. Step 5: Solve for x
    x = 2,584,303,430.13/58,739.18
  6. Step 6: Final answer
    x = 43,996.25

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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.