Home / 78,927.48-118,391.22-32,172.12

Finding the Fourth Proportional to 78,927.48, 118,391.22 and 32,172.12

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Solution

The fourth proportional to 78,927.48, 118,391.22 and 32,172.12 is: 48,258.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,927.48 : 118,391.22 = 32,172.12 : x
  2. Step 2: Convert to fraction form
    78,927.48/118,391.22 = 32,172.12/x
  3. Step 3: Cross multiply
    78,927.48x = 118,391.22 × 32,172.12
  4. Step 4: Simplify right side
    78,927.48x = 3,808,896,536.79
  5. Step 5: Solve for x
    x = 3,808,896,536.79/78,927.48
  6. Step 6: Final answer
    x = 48,258.18

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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.