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Finding the Fourth Proportional to 85,862.57, 118,486.12 and 47,619.12

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Solution

The fourth proportional to 85,862.57, 118,486.12 and 47,619.12 is: 65,712.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,862.57 : 118,486.12 = 47,619.12 : x
  2. Step 2: Convert to fraction form
    85,862.57/118,486.12 = 47,619.12/x
  3. Step 3: Cross multiply
    85,862.57x = 118,486.12 × 47,619.12
  4. Step 4: Simplify right side
    85,862.57x = 5,642,204,766.61
  5. Step 5: Solve for x
    x = 5,642,204,766.61/85,862.57
  6. Step 6: Final answer
    x = 65,712.04

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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.