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Finding the Fourth Proportional to 85,348.92, 128,038.54 and 29,195.24

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Solution

The fourth proportional to 85,348.92, 128,038.54 and 29,195.24 is: 43,798.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,348.92 : 128,038.54 = 29,195.24 : x
  2. Step 2: Convert to fraction form
    85,348.92/128,038.54 = 29,195.24/x
  3. Step 3: Cross multiply
    85,348.92x = 128,038.54 × 29,195.24
  4. Step 4: Simplify right side
    85,348.92x = 3,738,115,904.55
  5. Step 5: Solve for x
    x = 3,738,115,904.55/85,348.92
  6. Step 6: Final answer
    x = 43,798.05

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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.