Home / 55,552.32-76,660.28-31,686.68

Finding the Fourth Proportional to 55,552.32, 76,660.28 and 31,686.68

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Solution

The fourth proportional to 55,552.32, 76,660.28 and 31,686.68 is: 43,726.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,552.32 : 76,660.28 = 31,686.68 : x
  2. Step 2: Convert to fraction form
    55,552.32/76,660.28 = 31,686.68/x
  3. Step 3: Cross multiply
    55,552.32x = 76,660.28 × 31,686.68
  4. Step 4: Simplify right side
    55,552.32x = 2,429,109,761.07
  5. Step 5: Solve for x
    x = 2,429,109,761.07/55,552.32
  6. Step 6: Final answer
    x = 43,726.52

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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.