Home / 51,448.16-71,009.49-31,311.53

Finding the Fourth Proportional to 51,448.16, 71,009.49 and 31,311.53

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Solution

The fourth proportional to 51,448.16, 71,009.49 and 31,311.53 is: 43,216.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,448.16 : 71,009.49 = 31,311.53 : x
  2. Step 2: Convert to fraction form
    51,448.16/71,009.49 = 31,311.53/x
  3. Step 3: Cross multiply
    51,448.16x = 71,009.49 × 31,311.53
  4. Step 4: Simplify right side
    51,448.16x = 2,223,415,805.08
  5. Step 5: Solve for x
    x = 2,223,415,805.08/51,448.16
  6. Step 6: Final answer
    x = 43,216.62

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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.