Home / 42,750.45-64,132.70-13,168.29

Finding the Fourth Proportional to 42,750.45, 64,132.70 and 13,168.29

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Solution

The fourth proportional to 42,750.45, 64,132.70 and 13,168.29 is: 19,754.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,750.45 : 64,132.70 = 13,168.29 : x
  2. Step 2: Convert to fraction form
    42,750.45/64,132.70 = 13,168.29/x
  3. Step 3: Cross multiply
    42,750.45x = 64,132.70 × 13,168.29
  4. Step 4: Simplify right side
    42,750.45x = 844,517,992.08
  5. Step 5: Solve for x
    x = 844,517,992.08/42,750.45
  6. Step 6: Final answer
    x = 19,754.60

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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.