Home / 56,122.36-77,446.44-30,628.08

Finding the Fourth Proportional to 56,122.36, 77,446.44 and 30,628.08

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Solution

The fourth proportional to 56,122.36, 77,446.44 and 30,628.08 is: 42,265.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,122.36 : 77,446.44 = 30,628.08 : x
  2. Step 2: Convert to fraction form
    56,122.36/77,446.44 = 30,628.08/x
  3. Step 3: Cross multiply
    56,122.36x = 77,446.44 × 30,628.08
  4. Step 4: Simplify right side
    56,122.36x = 2,372,035,760.04
  5. Step 5: Solve for x
    x = 2,372,035,760.04/56,122.36
  6. Step 6: Final answer
    x = 42,265.43

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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.