Home / 81,582.24-112,581.72-47,127

Finding the Fourth Proportional to 81,582.24, 112,581.72 and 47,127

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Solution

The fourth proportional to 81,582.24, 112,581.72 and 47,127 is: 65,034.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,582.24 : 112,581.72 = 47,127 : x
  2. Step 2: Convert to fraction form
    81,582.24/112,581.72 = 47,127/x
  3. Step 3: Cross multiply
    81,582.24x = 112,581.72 × 47,127
  4. Step 4: Simplify right side
    81,582.24x = 5,305,638,718.44
  5. Step 5: Solve for x
    x = 5,305,638,718.44/81,582.24
  6. Step 6: Final answer
    x = 65,034.24

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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.