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Finding the Fourth Proportional to 85,180.16, 127,664.40 and 54,024.32

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Solution

The fourth proportional to 85,180.16, 127,664.40 and 54,024.32 is: 80,969.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,180.16 : 127,664.40 = 54,024.32 : x
  2. Step 2: Convert to fraction form
    85,180.16/127,664.40 = 54,024.32/x
  3. Step 3: Cross multiply
    85,180.16x = 127,664.40 × 54,024.32
  4. Step 4: Simplify right side
    85,180.16x = 6,896,982,398.21
  5. Step 5: Solve for x
    x = 6,896,982,398.21/85,180.16
  6. Step 6: Final answer
    x = 80,969.35

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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.