Home / 102,489.33-141,441.62-56,548.75

Finding the Fourth Proportional to 102,489.33, 141,441.62 and 56,548.75

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Solution

The fourth proportional to 102,489.33, 141,441.62 and 56,548.75 is: 78,040.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,489.33 : 141,441.62 = 56,548.75 : x
  2. Step 2: Convert to fraction form
    102,489.33/141,441.62 = 56,548.75/x
  3. Step 3: Cross multiply
    102,489.33x = 141,441.62 × 56,548.75
  4. Step 4: Simplify right side
    102,489.33x = 7,998,346,526.23
  5. Step 5: Solve for x
    x = 7,998,346,526.23/102,489.33
  6. Step 6: Final answer
    x = 78,040.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.