Home / 45,431.10-62,721-30,373.60

Finding the Fourth Proportional to 45,431.10, 62,721 and 30,373.60

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Solution

The fourth proportional to 45,431.10, 62,721 and 30,373.60 is: 41,933.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,431.10 : 62,721 = 30,373.60 : x
  2. Step 2: Convert to fraction form
    45,431.10/62,721 = 30,373.60/x
  3. Step 3: Cross multiply
    45,431.10x = 62,721 × 30,373.60
  4. Step 4: Simplify right side
    45,431.10x = 1,905,062,565.60
  5. Step 5: Solve for x
    x = 1,905,062,565.60/45,431.10
  6. Step 6: Final answer
    x = 41,933.01

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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.