Home / 55,535.06-76,639.74-31,664

Finding the Fourth Proportional to 55,535.06, 76,639.74 and 31,664

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Solution

The fourth proportional to 55,535.06, 76,639.74 and 31,664 is: 43,697.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,535.06 : 76,639.74 = 31,664 : x
  2. Step 2: Convert to fraction form
    55,535.06/76,639.74 = 31,664/x
  3. Step 3: Cross multiply
    55,535.06x = 76,639.74 × 31,664
  4. Step 4: Simplify right side
    55,535.06x = 2,426,720,727.36
  5. Step 5: Solve for x
    x = 2,426,720,727.36/55,535.06
  6. Step 6: Final answer
    x = 43,697.09

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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.