Home / 71,651.25-98,878.86-39,827.70

Finding the Fourth Proportional to 71,651.25, 98,878.86 and 39,827.70

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Solution

The fourth proportional to 71,651.25, 98,878.86 and 39,827.70 is: 54,962.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,651.25 : 98,878.86 = 39,827.70 : x
  2. Step 2: Convert to fraction form
    71,651.25/98,878.86 = 39,827.70/x
  3. Step 3: Cross multiply
    71,651.25x = 98,878.86 × 39,827.70
  4. Step 4: Simplify right side
    71,651.25x = 3,938,117,572.42
  5. Step 5: Solve for x
    x = 3,938,117,572.42/71,651.25
  6. Step 6: Final answer
    x = 54,962.30

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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.