Home / 79,247.21-118,870.61-20,082.71

Finding the Fourth Proportional to 79,247.21, 118,870.61 and 20,082.71

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Solution

The fourth proportional to 79,247.21, 118,870.61 and 20,082.71 is: 30,124.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,247.21 : 118,870.61 = 20,082.71 : x
  2. Step 2: Convert to fraction form
    79,247.21/118,870.61 = 20,082.71/x
  3. Step 3: Cross multiply
    79,247.21x = 118,870.61 × 20,082.71
  4. Step 4: Simplify right side
    79,247.21x = 2,387,243,887.74
  5. Step 5: Solve for x
    x = 2,387,243,887.74/79,247.21
  6. Step 6: Final answer
    x = 30,124.01

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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.