Home / 55,018.29-75,927.06-31,144.47

Finding the Fourth Proportional to 55,018.29, 75,927.06 and 31,144.47

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Solution

The fourth proportional to 55,018.29, 75,927.06 and 31,144.47 is: 42,980.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,018.29 : 75,927.06 = 31,144.47 : x
  2. Step 2: Convert to fraction form
    55,018.29/75,927.06 = 31,144.47/x
  3. Step 3: Cross multiply
    55,018.29x = 75,927.06 × 31,144.47
  4. Step 4: Simplify right side
    55,018.29x = 2,364,708,042.36
  5. Step 5: Solve for x
    x = 2,364,708,042.36/55,018.29
  6. Step 6: Final answer
    x = 42,980.40

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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.