Home / 58,164.79-87,247.22-18,721.90

Finding the Fourth Proportional to 58,164.79, 87,247.22 and 18,721.90

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Solution

The fourth proportional to 58,164.79, 87,247.22 and 18,721.90 is: 28,082.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,164.79 : 87,247.22 = 18,721.90 : x
  2. Step 2: Convert to fraction form
    58,164.79/87,247.22 = 18,721.90/x
  3. Step 3: Cross multiply
    58,164.79x = 87,247.22 × 18,721.90
  4. Step 4: Simplify right side
    58,164.79x = 1,633,433,728.12
  5. Step 5: Solve for x
    x = 1,633,433,728.12/58,164.79
  6. Step 6: Final answer
    x = 28,082.86

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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.