Home / 55,212.29-76,187.23-31,015.97

Finding the Fourth Proportional to 55,212.29, 76,187.23 and 31,015.97

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Solution

The fourth proportional to 55,212.29, 76,187.23 and 31,015.97 is: 42,798.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,212.29 : 76,187.23 = 31,015.97 : x
  2. Step 2: Convert to fraction form
    55,212.29/76,187.23 = 31,015.97/x
  3. Step 3: Cross multiply
    55,212.29x = 76,187.23 × 31,015.97
  4. Step 4: Simplify right side
    55,212.29x = 2,363,020,840.06
  5. Step 5: Solve for x
    x = 2,363,020,840.06/55,212.29
  6. Step 6: Final answer
    x = 42,798.82

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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.