Home / 67,410.04-101,129.82-20,666.56

Finding the Fourth Proportional to 67,410.04, 101,129.82 and 20,666.56

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Solution

The fourth proportional to 67,410.04, 101,129.82 and 20,666.56 is: 31,004.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,410.04 : 101,129.82 = 20,666.56 : x
  2. Step 2: Convert to fraction form
    67,410.04/101,129.82 = 20,666.56/x
  3. Step 3: Cross multiply
    67,410.04x = 101,129.82 × 20,666.56
  4. Step 4: Simplify right side
    67,410.04x = 2,090,005,492.82
  5. Step 5: Solve for x
    x = 2,090,005,492.82/67,410.04
  6. Step 6: Final answer
    x = 31,004.37

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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.