Home / 74,772.55-112,180.01-30,431.13

Finding the Fourth Proportional to 74,772.55, 112,180.01 and 30,431.13

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Solution

The fourth proportional to 74,772.55, 112,180.01 and 30,431.13 is: 45,655.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,772.55 : 112,180.01 = 30,431.13 : x
  2. Step 2: Convert to fraction form
    74,772.55/112,180.01 = 30,431.13/x
  3. Step 3: Cross multiply
    74,772.55x = 112,180.01 × 30,431.13
  4. Step 4: Simplify right side
    74,772.55x = 3,413,764,066.06
  5. Step 5: Solve for x
    x = 3,413,764,066.06/74,772.55
  6. Step 6: Final answer
    x = 45,655.31

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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.