Home / 76,836.29-105,971.41-64,524.16

Finding the Fourth Proportional to 76,836.29, 105,971.41 and 64,524.16

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Solution

The fourth proportional to 76,836.29, 105,971.41 and 64,524.16 is: 88,990.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,836.29 : 105,971.41 = 64,524.16 : x
  2. Step 2: Convert to fraction form
    76,836.29/105,971.41 = 64,524.16/x
  3. Step 3: Cross multiply
    76,836.29x = 105,971.41 × 64,524.16
  4. Step 4: Simplify right side
    76,836.29x = 6,837,715,788.03
  5. Step 5: Solve for x
    x = 6,837,715,788.03/76,836.29
  6. Step 6: Final answer
    x = 88,990.70

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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.