Home / 84,940.05-127,410.08-42,949.65

Finding the Fourth Proportional to 84,940.05, 127,410.08 and 42,949.65

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Solution

The fourth proportional to 84,940.05, 127,410.08 and 42,949.65 is: 64,424.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,940.05 : 127,410.08 = 42,949.65 : x
  2. Step 2: Convert to fraction form
    84,940.05/127,410.08 = 42,949.65/x
  3. Step 3: Cross multiply
    84,940.05x = 127,410.08 × 42,949.65
  4. Step 4: Simplify right side
    84,940.05x = 5,472,218,127.72
  5. Step 5: Solve for x
    x = 5,472,218,127.72/84,940.05
  6. Step 6: Final answer
    x = 64,424.48

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1.5x scale

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.