Home / 48,386.58-72,579.76-31,742.64

Finding the Fourth Proportional to 48,386.58, 72,579.76 and 31,742.64

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Solution

The fourth proportional to 48,386.58, 72,579.76 and 31,742.64 is: 47,613.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,386.58 : 72,579.76 = 31,742.64 : x
  2. Step 2: Convert to fraction form
    48,386.58/72,579.76 = 31,742.64/x
  3. Step 3: Cross multiply
    48,386.58x = 72,579.76 × 31,742.64
  4. Step 4: Simplify right side
    48,386.58x = 2,303,873,192.97
  5. Step 5: Solve for x
    x = 2,303,873,192.97/48,386.58
  6. Step 6: Final answer
    x = 47,613.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.