Home / 45,890-63,350.45-30,777.13

Finding the Fourth Proportional to 45,890, 63,350.45 and 30,777.13

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Solution

The fourth proportional to 45,890, 63,350.45 and 30,777.13 is: 42,487.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,890 : 63,350.45 = 30,777.13 : x
  2. Step 2: Convert to fraction form
    45,890/63,350.45 = 30,777.13/x
  3. Step 3: Cross multiply
    45,890x = 63,350.45 × 30,777.13
  4. Step 4: Simplify right side
    45,890x = 1,949,745,035.21
  5. Step 5: Solve for x
    x = 1,949,745,035.21/45,890
  6. Step 6: Final answer
    x = 42,487.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.