Home / 64,851.36-89,479.64-39,357.16

Finding the Fourth Proportional to 64,851.36, 89,479.64 and 39,357.16

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Solution

The fourth proportional to 64,851.36, 89,479.64 and 39,357.16 is: 54,303.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,851.36 : 89,479.64 = 39,357.16 : x
  2. Step 2: Convert to fraction form
    64,851.36/89,479.64 = 39,357.16/x
  3. Step 3: Cross multiply
    64,851.36x = 89,479.64 × 39,357.16
  4. Step 4: Simplify right side
    64,851.36x = 3,521,664,508.22
  5. Step 5: Solve for x
    x = 3,521,664,508.22/64,851.36
  6. Step 6: Final answer
    x = 54,303.63

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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.