Home / 80,763.48-121,019.27-51,118.70

Finding the Fourth Proportional to 80,763.48, 121,019.27 and 51,118.70

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Solution

The fourth proportional to 80,763.48, 121,019.27 and 51,118.70 is: 76,598.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,763.48 : 121,019.27 = 51,118.70 : x
  2. Step 2: Convert to fraction form
    80,763.48/121,019.27 = 51,118.70/x
  3. Step 3: Cross multiply
    80,763.48x = 121,019.27 × 51,118.70
  4. Step 4: Simplify right side
    80,763.48x = 6,186,346,896.66
  5. Step 5: Solve for x
    x = 6,186,346,896.66/80,763.48
  6. Step 6: Final answer
    x = 76,598.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.