Home / 67,420.08-101,126.34-20,672.82

Finding the Fourth Proportional to 67,420.08, 101,126.34 and 20,672.82

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Solution

The fourth proportional to 67,420.08, 101,126.34 and 20,672.82 is: 31,008.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,420.08 : 101,126.34 = 20,672.82 : x
  2. Step 2: Convert to fraction form
    67,420.08/101,126.34 = 20,672.82/x
  3. Step 3: Cross multiply
    67,420.08x = 101,126.34 × 20,672.82
  4. Step 4: Simplify right side
    67,420.08x = 2,090,566,624.08
  5. Step 5: Solve for x
    x = 2,090,566,624.08/67,420.08
  6. Step 6: Final answer
    x = 31,008.07

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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.