Home / 80,581.07-120,873.95-38,465.57

Finding the Fourth Proportional to 80,581.07, 120,873.95 and 38,465.57

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Solution

The fourth proportional to 80,581.07, 120,873.95 and 38,465.57 is: 57,699.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,581.07 : 120,873.95 = 38,465.57 : x
  2. Step 2: Convert to fraction form
    80,581.07/120,873.95 = 38,465.57/x
  3. Step 3: Cross multiply
    80,581.07x = 120,873.95 × 38,465.57
  4. Step 4: Simplify right side
    80,581.07x = 4,649,484,588.20
  5. Step 5: Solve for x
    x = 4,649,484,588.20/80,581.07
  6. Step 6: Final answer
    x = 57,699.47

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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.