Home / 55,535.20-76,640.48-30,384.72

Finding the Fourth Proportional to 55,535.20, 76,640.48 and 30,384.72

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Solution

The fourth proportional to 55,535.20, 76,640.48 and 30,384.72 is: 41,931.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,535.20 : 76,640.48 = 30,384.72 : x
  2. Step 2: Convert to fraction form
    55,535.20/76,640.48 = 30,384.72/x
  3. Step 3: Cross multiply
    55,535.20x = 76,640.48 × 30,384.72
  4. Step 4: Simplify right side
    55,535.20x = 2,328,699,525.47
  5. Step 5: Solve for x
    x = 2,328,699,525.47/55,535.20
  6. Step 6: Final answer
    x = 41,931.96

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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.