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Finding the Fourth Proportional to 99,763.81, 137,676.99 and 54,444.73

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Solution

The fourth proportional to 99,763.81, 137,676.99 and 54,444.73 is: 75,135.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,763.81 : 137,676.99 = 54,444.73 : x
  2. Step 2: Convert to fraction form
    99,763.81/137,676.99 = 54,444.73/x
  3. Step 3: Cross multiply
    99,763.81x = 137,676.99 × 54,444.73
  4. Step 4: Simplify right side
    99,763.81x = 7,495,786,547.76
  5. Step 5: Solve for x
    x = 7,495,786,547.76/99,763.81
  6. Step 6: Final answer
    x = 75,135.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.