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Finding the Fourth Proportional to 85,955.57, 128,801.52 and 36,008.34

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Solution

The fourth proportional to 85,955.57, 128,801.52 and 36,008.34 is: 53,957.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,955.57 : 128,801.52 = 36,008.34 : x
  2. Step 2: Convert to fraction form
    85,955.57/128,801.52 = 36,008.34/x
  3. Step 3: Cross multiply
    85,955.57x = 128,801.52 × 36,008.34
  4. Step 4: Simplify right side
    85,955.57x = 4,637,928,924.68
  5. Step 5: Solve for x
    x = 4,637,928,924.68/85,955.57
  6. Step 6: Final answer
    x = 53,957.28

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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.