Home / 74,771.12-112,156.48-18,610.18

Finding the Fourth Proportional to 74,771.12, 112,156.48 and 18,610.18

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Solution

The fourth proportional to 74,771.12, 112,156.48 and 18,610.18 is: 27,915.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,771.12 : 112,156.48 = 18,610.18 : x
  2. Step 2: Convert to fraction form
    74,771.12/112,156.48 = 18,610.18/x
  3. Step 3: Cross multiply
    74,771.12x = 112,156.48 × 18,610.18
  4. Step 4: Simplify right side
    74,771.12x = 2,087,252,280.97
  5. Step 5: Solve for x
    x = 2,087,252,280.97/74,771.12
  6. Step 6: Final answer
    x = 27,915.22

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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.