Home / 55,531.04-76,613.85-31,640.49

Finding the Fourth Proportional to 55,531.04, 76,613.85 and 31,640.49

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Solution

The fourth proportional to 55,531.04, 76,613.85 and 31,640.49 is: 43,653.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,531.04 : 76,613.85 = 31,640.49 : x
  2. Step 2: Convert to fraction form
    55,531.04/76,613.85 = 31,640.49/x
  3. Step 3: Cross multiply
    55,531.04x = 76,613.85 × 31,640.49
  4. Step 4: Simplify right side
    55,531.04x = 2,424,099,754.79
  5. Step 5: Solve for x
    x = 2,424,099,754.79/55,531.04
  6. Step 6: Final answer
    x = 43,653.06

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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.