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Finding the Fourth Proportional to 85,587.60, 128,274.44 and 41,202.48

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Solution

The fourth proportional to 85,587.60, 128,274.44 and 41,202.48 is: 61,752.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,587.60 : 128,274.44 = 41,202.48 : x
  2. Step 2: Convert to fraction form
    85,587.60/128,274.44 = 41,202.48/x
  3. Step 3: Cross multiply
    85,587.60x = 128,274.44 × 41,202.48
  4. Step 4: Simplify right side
    85,587.60x = 5,285,225,048.61
  5. Step 5: Solve for x
    x = 5,285,225,048.61/85,587.60
  6. Step 6: Final answer
    x = 61,752.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.