Home / 55,020.29-75,929.82-31,146.47

Finding the Fourth Proportional to 55,020.29, 75,929.82 and 31,146.47

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Solution

The fourth proportional to 55,020.29, 75,929.82 and 31,146.47 is: 42,983.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,020.29 : 75,929.82 = 31,146.47 : x
  2. Step 2: Convert to fraction form
    55,020.29/75,929.82 = 31,146.47/x
  3. Step 3: Cross multiply
    55,020.29x = 75,929.82 × 31,146.47
  4. Step 4: Simplify right side
    55,020.29x = 2,364,945,860.74
  5. Step 5: Solve for x
    x = 2,364,945,860.74/55,020.29
  6. Step 6: Final answer
    x = 42,983.16

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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.