Home / 75,186.77-103,761.17-42,930.11

Finding the Fourth Proportional to 75,186.77, 103,761.17 and 42,930.11

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Solution

The fourth proportional to 75,186.77, 103,761.17 and 42,930.11 is: 59,245.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,186.77 : 103,761.17 = 42,930.11 : x
  2. Step 2: Convert to fraction form
    75,186.77/103,761.17 = 42,930.11/x
  3. Step 3: Cross multiply
    75,186.77x = 103,761.17 × 42,930.11
  4. Step 4: Simplify right side
    75,186.77x = 4,454,477,708.37
  5. Step 5: Solve for x
    x = 4,454,477,708.37/75,186.77
  6. Step 6: Final answer
    x = 59,245.50

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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.