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Finding the Fourth Proportional to 85,363.08, 128,022.48 and 25,377.48

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Solution

The fourth proportional to 85,363.08, 128,022.48 and 25,377.48 is: 38,059.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,363.08 : 128,022.48 = 25,377.48 : x
  2. Step 2: Convert to fraction form
    85,363.08/128,022.48 = 25,377.48/x
  3. Step 3: Cross multiply
    85,363.08x = 128,022.48 × 25,377.48
  4. Step 4: Simplify right side
    85,363.08x = 3,248,887,925.75
  5. Step 5: Solve for x
    x = 3,248,887,925.75/85,363.08
  6. Step 6: Final answer
    x = 38,059.64

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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.