Home / 87,680.44-121,006.38-53,688.76

Finding the Fourth Proportional to 87,680.44, 121,006.38 and 53,688.76

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Solution

The fourth proportional to 87,680.44, 121,006.38 and 53,688.76 is: 74,095.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,680.44 : 121,006.38 = 53,688.76 : x
  2. Step 2: Convert to fraction form
    87,680.44/121,006.38 = 53,688.76/x
  3. Step 3: Cross multiply
    87,680.44x = 121,006.38 × 53,688.76
  4. Step 4: Simplify right side
    87,680.44x = 6,496,682,494.29
  5. Step 5: Solve for x
    x = 6,496,682,494.29/87,680.44
  6. Step 6: Final answer
    x = 74,095.00

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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.