Home / 81,021.02-111,832.47-47,037.14

Finding the Fourth Proportional to 81,021.02, 111,832.47 and 47,037.14

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Solution

The fourth proportional to 81,021.02, 111,832.47 and 47,037.14 is: 64,924.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,021.02 : 111,832.47 = 47,037.14 : x
  2. Step 2: Convert to fraction form
    81,021.02/111,832.47 = 47,037.14/x
  3. Step 3: Cross multiply
    81,021.02x = 111,832.47 × 47,037.14
  4. Step 4: Simplify right side
    81,021.02x = 5,260,279,547.94
  5. Step 5: Solve for x
    x = 5,260,279,547.94/81,021.02
  6. Step 6: Final answer
    x = 64,924.87

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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.