Home / 90,320.78-124,642.66-50,037.16

Finding the Fourth Proportional to 90,320.78, 124,642.66 and 50,037.16

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Solution

The fourth proportional to 90,320.78, 124,642.66 and 50,037.16 is: 69,051.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,320.78 : 124,642.66 = 50,037.16 : x
  2. Step 2: Convert to fraction form
    90,320.78/124,642.66 = 50,037.16/x
  3. Step 3: Cross multiply
    90,320.78x = 124,642.66 × 50,037.16
  4. Step 4: Simplify right side
    90,320.78x = 6,236,764,721.25
  5. Step 5: Solve for x
    x = 6,236,764,721.25/90,320.78
  6. Step 6: Final answer
    x = 69,051.27

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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.