Home / 85,171.37-127,785.50-37,779.93

Finding the Fourth Proportional to 85,171.37, 127,785.50 and 37,779.93

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Solution

The fourth proportional to 85,171.37, 127,785.50 and 37,779.93 is: 56,682.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,171.37 : 127,785.50 = 37,779.93 : x
  2. Step 2: Convert to fraction form
    85,171.37/127,785.50 = 37,779.93/x
  3. Step 3: Cross multiply
    85,171.37x = 127,785.50 × 37,779.93
  4. Step 4: Simplify right side
    85,171.37x = 4,827,727,377.49
  5. Step 5: Solve for x
    x = 4,827,727,377.49/85,171.37
  6. Step 6: Final answer
    x = 56,682.52

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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.