Home / 71,582.64-98,780.12-39,749.52

Finding the Fourth Proportional to 71,582.64, 98,780.12 and 39,749.52

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Solution

The fourth proportional to 71,582.64, 98,780.12 and 39,749.52 is: 54,852.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,582.64 : 98,780.12 = 39,749.52 : x
  2. Step 2: Convert to fraction form
    71,582.64/98,780.12 = 39,749.52/x
  3. Step 3: Cross multiply
    71,582.64x = 98,780.12 × 39,749.52
  4. Step 4: Simplify right side
    71,582.64x = 3,926,462,355.54
  5. Step 5: Solve for x
    x = 3,926,462,355.54/71,582.64
  6. Step 6: Final answer
    x = 54,852.16

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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.