Home / 75,205.84-103,786.95-42,945.72

Finding the Fourth Proportional to 75,205.84, 103,786.95 and 42,945.72

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Solution

The fourth proportional to 75,205.84, 103,786.95 and 42,945.72 is: 59,266.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,205.84 : 103,786.95 = 42,945.72 : x
  2. Step 2: Convert to fraction form
    75,205.84/103,786.95 = 42,945.72/x
  3. Step 3: Cross multiply
    75,205.84x = 103,786.95 × 42,945.72
  4. Step 4: Simplify right side
    75,205.84x = 4,457,204,995.75
  5. Step 5: Solve for x
    x = 4,457,204,995.75/75,205.84
  6. Step 6: Final answer
    x = 59,266.74

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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.