Home / 55,536.04-76,640.34-30,385

Finding the Fourth Proportional to 55,536.04, 76,640.34 and 30,385

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Solution

The fourth proportional to 55,536.04, 76,640.34 and 30,385 is: 41,931.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,536.04 : 76,640.34 = 30,385 : x
  2. Step 2: Convert to fraction form
    55,536.04/76,640.34 = 30,385/x
  3. Step 3: Cross multiply
    55,536.04x = 76,640.34 × 30,385
  4. Step 4: Simplify right side
    55,536.04x = 2,328,716,730.90
  5. Step 5: Solve for x
    x = 2,328,716,730.90/55,536.04
  6. Step 6: Final answer
    x = 41,931.63

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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.