Home / 87,806.98-121,160.58-53,333.78

Finding the Fourth Proportional to 87,806.98, 121,160.58 and 53,333.78

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Solution

The fourth proportional to 87,806.98, 121,160.58 and 53,333.78 is: 73,592.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,806.98 : 121,160.58 = 53,333.78 : x
  2. Step 2: Convert to fraction form
    87,806.98/121,160.58 = 53,333.78/x
  3. Step 3: Cross multiply
    87,806.98x = 121,160.58 × 53,333.78
  4. Step 4: Simplify right side
    87,806.98x = 6,461,951,718.39
  5. Step 5: Solve for x
    x = 6,461,951,718.39/87,806.98
  6. Step 6: Final answer
    x = 73,592.69

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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.