Home / 55,535.07-76,640.31-30,384.57

Finding the Fourth Proportional to 55,535.07, 76,640.31 and 30,384.57

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Solution

The fourth proportional to 55,535.07, 76,640.31 and 30,384.57 is: 41,931.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,535.07 : 76,640.31 = 30,384.57 : x
  2. Step 2: Convert to fraction form
    55,535.07/76,640.31 = 30,384.57/x
  3. Step 3: Cross multiply
    55,535.07x = 76,640.31 × 30,384.57
  4. Step 4: Simplify right side
    55,535.07x = 2,328,682,864.02
  5. Step 5: Solve for x
    x = 2,328,682,864.02/55,535.07
  6. Step 6: Final answer
    x = 41,931.75

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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.