Home / 81,262.02-112,147.10-45,455.37

Finding the Fourth Proportional to 81,262.02, 112,147.10 and 45,455.37

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Solution

The fourth proportional to 81,262.02, 112,147.10 and 45,455.37 is: 62,731.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,262.02 : 112,147.10 = 45,455.37 : x
  2. Step 2: Convert to fraction form
    81,262.02/112,147.10 = 45,455.37/x
  3. Step 3: Cross multiply
    81,262.02x = 112,147.10 × 45,455.37
  4. Step 4: Simplify right side
    81,262.02x = 5,097,687,924.93
  5. Step 5: Solve for x
    x = 5,097,687,924.93/81,262.02
  6. Step 6: Final answer
    x = 62,731.49

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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.