Home / 42,772.23-64,174.77-30,134.13

Finding the Fourth Proportional to 42,772.23, 64,174.77 and 30,134.13

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Solution

The fourth proportional to 42,772.23, 64,174.77 and 30,134.13 is: 45,212.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,772.23 : 64,174.77 = 30,134.13 : x
  2. Step 2: Convert to fraction form
    42,772.23/64,174.77 = 30,134.13/x
  3. Step 3: Cross multiply
    42,772.23x = 64,174.77 × 30,134.13
  4. Step 4: Simplify right side
    42,772.23x = 1,933,850,861.90
  5. Step 5: Solve for x
    x = 1,933,850,861.90/42,772.23
  6. Step 6: Final answer
    x = 45,212.77

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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.