Home / 74,772.51-112,179.95-30,431.08

Finding the Fourth Proportional to 74,772.51, 112,179.95 and 30,431.08

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Solution

The fourth proportional to 74,772.51, 112,179.95 and 30,431.08 is: 45,655.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,772.51 : 112,179.95 = 30,431.08 : x
  2. Step 2: Convert to fraction form
    74,772.51/112,179.95 = 30,431.08/x
  3. Step 3: Cross multiply
    74,772.51x = 112,179.95 × 30,431.08
  4. Step 4: Simplify right side
    74,772.51x = 3,413,757,032.85
  5. Step 5: Solve for x
    x = 3,413,757,032.85/74,772.51
  6. Step 6: Final answer
    x = 45,655.24

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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.