Home / 71,634.48-98,853.12-39,804.72

Finding the Fourth Proportional to 71,634.48, 98,853.12 and 39,804.72

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Solution

The fourth proportional to 71,634.48, 98,853.12 and 39,804.72 is: 54,929.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,634.48 : 98,853.12 = 39,804.72 : x
  2. Step 2: Convert to fraction form
    71,634.48/98,853.12 = 39,804.72/x
  3. Step 3: Cross multiply
    71,634.48x = 98,853.12 × 39,804.72
  4. Step 4: Simplify right side
    71,634.48x = 3,934,820,762.73
  5. Step 5: Solve for x
    x = 3,934,820,762.73/71,634.48
  6. Step 6: Final answer
    x = 54,929.15

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1.5x scale

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.