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Finding the Fourth Proportional to 66,575.90, 99,778.80 and 27,088.40

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Solution

The fourth proportional to 66,575.90, 99,778.80 and 27,088.40 is: 40,597.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,575.90 : 99,778.80 = 27,088.40 : x
  2. Step 2: Convert to fraction form
    66,575.90/99,778.80 = 27,088.40/x
  3. Step 3: Cross multiply
    66,575.90x = 99,778.80 × 27,088.40
  4. Step 4: Simplify right side
    66,575.90x = 2,702,848,045.92
  5. Step 5: Solve for x
    x = 2,702,848,045.92/66,575.90
  6. Step 6: Final answer
    x = 40,597.99

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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.