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Finding the Fourth Proportional to 85,324.30, 127,813.65 and 48,345.10

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Solution

The fourth proportional to 85,324.30, 127,813.65 and 48,345.10 is: 72,419.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,324.30 : 127,813.65 = 48,345.10 : x
  2. Step 2: Convert to fraction form
    85,324.30/127,813.65 = 48,345.10/x
  3. Step 3: Cross multiply
    85,324.30x = 127,813.65 × 48,345.10
  4. Step 4: Simplify right side
    85,324.30x = 6,179,163,690.62
  5. Step 5: Solve for x
    x = 6,179,163,690.62/85,324.30
  6. Step 6: Final answer
    x = 72,419.74

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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.