Home / 87,752.84-121,046.70-53,285.72

Finding the Fourth Proportional to 87,752.84, 121,046.70 and 53,285.72

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Solution

The fourth proportional to 87,752.84, 121,046.70 and 53,285.72 is: 73,502.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,752.84 : 121,046.70 = 53,285.72 : x
  2. Step 2: Convert to fraction form
    87,752.84/121,046.70 = 53,285.72/x
  3. Step 3: Cross multiply
    87,752.84x = 121,046.70 × 53,285.72
  4. Step 4: Simplify right side
    87,752.84x = 6,450,060,563.12
  5. Step 5: Solve for x
    x = 6,450,060,563.12/87,752.84
  6. Step 6: Final answer
    x = 73,502.58

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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.