Home / 56,835.70-78,360.30-38,899.90

Finding the Fourth Proportional to 56,835.70, 78,360.30 and 38,899.90

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Solution

The fourth proportional to 56,835.70, 78,360.30 and 38,899.90 is: 53,631.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,835.70 : 78,360.30 = 38,899.90 : x
  2. Step 2: Convert to fraction form
    56,835.70/78,360.30 = 38,899.90/x
  3. Step 3: Cross multiply
    56,835.70x = 78,360.30 × 38,899.90
  4. Step 4: Simplify right side
    56,835.70x = 3,048,207,833.97
  5. Step 5: Solve for x
    x = 3,048,207,833.97/56,835.70
  6. Step 6: Final answer
    x = 53,631.92

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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.