Home / 73,140.10-100,928.10-42,926.65

Finding the Fourth Proportional to 73,140.10, 100,928.10 and 42,926.65

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Solution

The fourth proportional to 73,140.10, 100,928.10 and 42,926.65 is: 59,235.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,140.10 : 100,928.10 = 42,926.65 : x
  2. Step 2: Convert to fraction form
    73,140.10/100,928.10 = 42,926.65/x
  3. Step 3: Cross multiply
    73,140.10x = 100,928.10 × 42,926.65
  4. Step 4: Simplify right side
    73,140.10x = 4,332,505,223.87
  5. Step 5: Solve for x
    x = 4,332,505,223.87/73,140.10
  6. Step 6: Final answer
    x = 59,235.70

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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.