Home / 71,639.36-98,782.56-48,982.08

Finding the Fourth Proportional to 71,639.36, 98,782.56 and 48,982.08

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Solution

The fourth proportional to 71,639.36, 98,782.56 and 48,982.08 is: 67,540.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,639.36 : 98,782.56 = 48,982.08 : x
  2. Step 2: Convert to fraction form
    71,639.36/98,782.56 = 48,982.08/x
  3. Step 3: Cross multiply
    71,639.36x = 98,782.56 × 48,982.08
  4. Step 4: Simplify right side
    71,639.36x = 4,838,575,256.52
  5. Step 5: Solve for x
    x = 4,838,575,256.52/71,639.36
  6. Step 6: Final answer
    x = 67,540.74

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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.