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Finding the Fourth Proportional to 55,648.98, 83,486.70 and 18,209.16

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Solution

The fourth proportional to 55,648.98, 83,486.70 and 18,209.16 is: 27,318.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,648.98 : 83,486.70 = 18,209.16 : x
  2. Step 2: Convert to fraction form
    55,648.98/83,486.70 = 18,209.16/x
  3. Step 3: Cross multiply
    55,648.98x = 83,486.70 × 18,209.16
  4. Step 4: Simplify right side
    55,648.98x = 1,520,222,678.17
  5. Step 5: Solve for x
    x = 1,520,222,678.17/55,648.98
  6. Step 6: Final answer
    x = 27,318.07

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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.