Home / 85,156.60-117,512.94-47,430.04

Finding the Fourth Proportional to 85,156.60, 117,512.94 and 47,430.04

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Solution

The fourth proportional to 85,156.60, 117,512.94 and 47,430.04 is: 65,451.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,156.60 : 117,512.94 = 47,430.04 : x
  2. Step 2: Convert to fraction form
    85,156.60/117,512.94 = 47,430.04/x
  3. Step 3: Cross multiply
    85,156.60x = 117,512.94 × 47,430.04
  4. Step 4: Simplify right side
    85,156.60x = 5,573,643,444.72
  5. Step 5: Solve for x
    x = 5,573,643,444.72/85,156.60
  6. Step 6: Final answer
    x = 65,451.69

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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.