Home / 55,111.30-76,054.47-31,237.45

Finding the Fourth Proportional to 55,111.30, 76,054.47 and 31,237.45

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Solution

The fourth proportional to 55,111.30, 76,054.47 and 31,237.45 is: 43,108.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,111.30 : 76,054.47 = 31,237.45 : x
  2. Step 2: Convert to fraction form
    55,111.30/76,054.47 = 31,237.45/x
  3. Step 3: Cross multiply
    55,111.30x = 76,054.47 × 31,237.45
  4. Step 4: Simplify right side
    55,111.30x = 2,375,747,703.90
  5. Step 5: Solve for x
    x = 2,375,747,703.90/55,111.30
  6. Step 6: Final answer
    x = 43,108.18

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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.