Home / 86,939.34-119,933.90-56,710.94

Finding the Fourth Proportional to 86,939.34, 119,933.90 and 56,710.94

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Solution

The fourth proportional to 86,939.34, 119,933.90 and 56,710.94 is: 78,233.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,939.34 : 119,933.90 = 56,710.94 : x
  2. Step 2: Convert to fraction form
    86,939.34/119,933.90 = 56,710.94/x
  3. Step 3: Cross multiply
    86,939.34x = 119,933.90 × 56,710.94
  4. Step 4: Simplify right side
    86,939.34x = 6,801,564,206.87
  5. Step 5: Solve for x
    x = 6,801,564,206.87/86,939.34
  6. Step 6: Final answer
    x = 78,233.45

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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.