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Finding the Fourth Proportional to 85,079.81, 127,619.72 and 22,748.69

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Solution

The fourth proportional to 85,079.81, 127,619.72 and 22,748.69 is: 34,123.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,079.81 : 127,619.72 = 22,748.69 : x
  2. Step 2: Convert to fraction form
    85,079.81/127,619.72 = 22,748.69/x
  3. Step 3: Cross multiply
    85,079.81x = 127,619.72 × 22,748.69
  4. Step 4: Simplify right side
    85,079.81x = 2,903,181,448.17
  5. Step 5: Solve for x
    x = 2,903,181,448.17/85,079.81
  6. Step 6: Final answer
    x = 34,123.04

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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.