Home / 55,111.61-76,054.89-31,237.77

Finding the Fourth Proportional to 55,111.61, 76,054.89 and 31,237.77

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Solution

The fourth proportional to 55,111.61, 76,054.89 and 31,237.77 is: 43,108.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,111.61 : 76,054.89 = 31,237.77 : x
  2. Step 2: Convert to fraction form
    55,111.61/76,054.89 = 31,237.77/x
  3. Step 3: Cross multiply
    55,111.61x = 76,054.89 × 31,237.77
  4. Step 4: Simplify right side
    55,111.61x = 2,375,785,161.20
  5. Step 5: Solve for x
    x = 2,375,785,161.20/55,111.61
  6. Step 6: Final answer
    x = 43,108.62

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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.