Home / 98,787.72-136,326-53,464.76

Finding the Fourth Proportional to 98,787.72, 136,326 and 53,464.76

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Solution

The fourth proportional to 98,787.72, 136,326 and 53,464.76 is: 73,780.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,787.72 : 136,326 = 53,464.76 : x
  2. Step 2: Convert to fraction form
    98,787.72/136,326 = 53,464.76/x
  3. Step 3: Cross multiply
    98,787.72x = 136,326 × 53,464.76
  4. Step 4: Simplify right side
    98,787.72x = 7,288,636,871.76
  5. Step 5: Solve for x
    x = 7,288,636,871.76/98,787.72
  6. Step 6: Final answer
    x = 73,780.80

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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.