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Finding the Fourth Proportional to 85,888.49, 128,873.43 and 41,490.36

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Solution

The fourth proportional to 85,888.49, 128,873.43 and 41,490.36 is: 62,255.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,888.49 : 128,873.43 = 41,490.36 : x
  2. Step 2: Convert to fraction form
    85,888.49/128,873.43 = 41,490.36/x
  3. Step 3: Cross multiply
    85,888.49x = 128,873.43 × 41,490.36
  4. Step 4: Simplify right side
    85,888.49x = 5,347,005,005.13
  5. Step 5: Solve for x
    x = 5,347,005,005.13/85,888.49
  6. Step 6: Final answer
    x = 62,255.20

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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.