Home / 81,580.74-112,579.65-47,125.50

Finding the Fourth Proportional to 81,580.74, 112,579.65 and 47,125.50

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Solution

The fourth proportional to 81,580.74, 112,579.65 and 47,125.50 is: 65,032.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,580.74 : 112,579.65 = 47,125.50 : x
  2. Step 2: Convert to fraction form
    81,580.74/112,579.65 = 47,125.50/x
  3. Step 3: Cross multiply
    81,580.74x = 112,579.65 × 47,125.50
  4. Step 4: Simplify right side
    81,580.74x = 5,305,372,296.08
  5. Step 5: Solve for x
    x = 5,305,372,296.08/81,580.74
  6. Step 6: Final answer
    x = 65,032.17

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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.