Home / 85,005.72-127,507.54-38,225.56

Finding the Fourth Proportional to 85,005.72, 127,507.54 and 38,225.56

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Solution

The fourth proportional to 85,005.72, 127,507.54 and 38,225.56 is: 57,337.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,005.72 : 127,507.54 = 38,225.56 : x
  2. Step 2: Convert to fraction form
    85,005.72/127,507.54 = 38,225.56/x
  3. Step 3: Cross multiply
    85,005.72x = 127,507.54 × 38,225.56
  4. Step 4: Simplify right side
    85,005.72x = 4,874,047,120.72
  5. Step 5: Solve for x
    x = 4,874,047,120.72/85,005.72
  6. Step 6: Final answer
    x = 57,337.87

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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.