Home / 74,876.56-112,315.23-30,503.77

Finding the Fourth Proportional to 74,876.56, 112,315.23 and 30,503.77

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Solution

The fourth proportional to 74,876.56, 112,315.23 and 30,503.77 is: 45,755.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,876.56 : 112,315.23 = 30,503.77 : x
  2. Step 2: Convert to fraction form
    74,876.56/112,315.23 = 30,503.77/x
  3. Step 3: Cross multiply
    74,876.56x = 112,315.23 × 30,503.77
  4. Step 4: Simplify right side
    74,876.56x = 3,426,037,943.42
  5. Step 5: Solve for x
    x = 3,426,037,943.42/74,876.56
  6. Step 6: Final answer
    x = 45,755.81

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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.