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Finding the Fourth Proportional to 85,551.33, 128,327 and 35,654.93

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Solution

The fourth proportional to 85,551.33, 128,327 and 35,654.93 is: 53,482.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,551.33 : 128,327 = 35,654.93 : x
  2. Step 2: Convert to fraction form
    85,551.33/128,327 = 35,654.93/x
  3. Step 3: Cross multiply
    85,551.33x = 128,327 × 35,654.93
  4. Step 4: Simplify right side
    85,551.33x = 4,575,490,202.11
  5. Step 5: Solve for x
    x = 4,575,490,202.11/85,551.33
  6. Step 6: Final answer
    x = 53,482.40

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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.