Home / 42,120.37-63,180.30-10,530.28

Finding the Fourth Proportional to 42,120.37, 63,180.30 and 10,530.28

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Solution

The fourth proportional to 42,120.37, 63,180.30 and 10,530.28 is: 15,795.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,120.37 : 63,180.30 = 10,530.28 : x
  2. Step 2: Convert to fraction form
    42,120.37/63,180.30 = 10,530.28/x
  3. Step 3: Cross multiply
    42,120.37x = 63,180.30 × 10,530.28
  4. Step 4: Simplify right side
    42,120.37x = 665,306,249.48
  5. Step 5: Solve for x
    x = 665,306,249.48/42,120.37
  6. Step 6: Final answer
    x = 15,795.36

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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.