Home / 71,583.60-98,788.65-39,752.64

Finding the Fourth Proportional to 71,583.60, 98,788.65 and 39,752.64

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Solution

The fourth proportional to 71,583.60, 98,788.65 and 39,752.64 is: 54,860.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,583.60 : 98,788.65 = 39,752.64 : x
  2. Step 2: Convert to fraction form
    71,583.60/98,788.65 = 39,752.64/x
  3. Step 3: Cross multiply
    71,583.60x = 98,788.65 × 39,752.64
  4. Step 4: Simplify right side
    71,583.60x = 3,927,109,639.54
  5. Step 5: Solve for x
    x = 3,927,109,639.54/71,583.60
  6. Step 6: Final answer
    x = 54,860.47

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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.