Home / 75,208.10-103,790.05-42,947.98

Finding the Fourth Proportional to 75,208.10, 103,790.05 and 42,947.98

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Solution

The fourth proportional to 75,208.10, 103,790.05 and 42,947.98 is: 59,269.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,208.10 : 103,790.05 = 42,947.98 : x
  2. Step 2: Convert to fraction form
    75,208.10/103,790.05 = 42,947.98/x
  3. Step 3: Cross multiply
    75,208.10x = 103,790.05 × 42,947.98
  4. Step 4: Simplify right side
    75,208.10x = 4,457,572,624.75
  5. Step 5: Solve for x
    x = 4,457,572,624.75/75,208.10
  6. Step 6: Final answer
    x = 59,269.85

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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.