Home / 75,705.60-113,503.73-42,435.87

Finding the Fourth Proportional to 75,705.60, 113,503.73 and 42,435.87

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Solution

The fourth proportional to 75,705.60, 113,503.73 and 42,435.87 is: 63,623.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,705.60 : 113,503.73 = 42,435.87 : x
  2. Step 2: Convert to fraction form
    75,705.60/113,503.73 = 42,435.87/x
  3. Step 3: Cross multiply
    75,705.60x = 113,503.73 × 42,435.87
  4. Step 4: Simplify right side
    75,705.60x = 4,816,628,751.10
  5. Step 5: Solve for x
    x = 4,816,628,751.10/75,705.60
  6. Step 6: Final answer
    x = 63,623.15

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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.