Home / 75,611.54-104,320.44-42,900.57

Finding the Fourth Proportional to 75,611.54, 104,320.44 and 42,900.57

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Solution

The fourth proportional to 75,611.54, 104,320.44 and 42,900.57 is: 59,189.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,611.54 : 104,320.44 = 42,900.57 : x
  2. Step 2: Convert to fraction form
    75,611.54/104,320.44 = 42,900.57/x
  3. Step 3: Cross multiply
    75,611.54x = 104,320.44 × 42,900.57
  4. Step 4: Simplify right side
    75,611.54x = 4,475,406,338.65
  5. Step 5: Solve for x
    x = 4,475,406,338.65/75,611.54
  6. Step 6: Final answer
    x = 59,189.46

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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.