Home / 55,686.64-76,849.32-30,538.48

Finding the Fourth Proportional to 55,686.64, 76,849.32 and 30,538.48

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Solution

The fourth proportional to 55,686.64, 76,849.32 and 30,538.48 is: 42,144.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,686.64 : 76,849.32 = 30,538.48 : x
  2. Step 2: Convert to fraction form
    55,686.64/76,849.32 = 30,538.48/x
  3. Step 3: Cross multiply
    55,686.64x = 76,849.32 × 30,538.48
  4. Step 4: Simplify right side
    55,686.64x = 2,346,861,421.83
  5. Step 5: Solve for x
    x = 2,346,861,421.83/55,686.64
  6. Step 6: Final answer
    x = 42,144.07

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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.