Home / 87,763.65-121,114.41-53,772.21

Finding the Fourth Proportional to 87,763.65, 121,114.41 and 53,772.21

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Solution

The fourth proportional to 87,763.65, 121,114.41 and 53,772.21 is: 74,206.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,763.65 : 121,114.41 = 53,772.21 : x
  2. Step 2: Convert to fraction form
    87,763.65/121,114.41 = 53,772.21/x
  3. Step 3: Cross multiply
    87,763.65x = 121,114.41 × 53,772.21
  4. Step 4: Simplify right side
    87,763.65x = 6,512,589,488.55
  5. Step 5: Solve for x
    x = 6,512,589,488.55/87,763.65
  6. Step 6: Final answer
    x = 74,206.00

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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.