Home / 55,513.86-76,611.10-31,636.68

Finding the Fourth Proportional to 55,513.86, 76,611.10 and 31,636.68

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Solution

The fourth proportional to 55,513.86, 76,611.10 and 31,636.68 is: 43,659.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,513.86 : 76,611.10 = 31,636.68 : x
  2. Step 2: Convert to fraction form
    55,513.86/76,611.10 = 31,636.68/x
  3. Step 3: Cross multiply
    55,513.86x = 76,611.10 × 31,636.68
  4. Step 4: Simplify right side
    55,513.86x = 2,423,720,548.08
  5. Step 5: Solve for x
    x = 2,423,720,548.08/55,513.86
  6. Step 6: Final answer
    x = 43,659.74

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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.