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Finding the Fourth Proportional to 85,626.88, 118,160.90 and 47,385.76

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Solution

The fourth proportional to 85,626.88, 118,160.90 and 47,385.76 is: 65,390.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,626.88 : 118,160.90 = 47,385.76 : x
  2. Step 2: Convert to fraction form
    85,626.88/118,160.90 = 47,385.76/x
  3. Step 3: Cross multiply
    85,626.88x = 118,160.90 × 47,385.76
  4. Step 4: Simplify right side
    85,626.88x = 5,599,144,048.78
  5. Step 5: Solve for x
    x = 5,599,144,048.78/85,626.88
  6. Step 6: Final answer
    x = 65,390.03

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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.