Home / 55,364.50-76,407.12-31,498.86

Finding the Fourth Proportional to 55,364.50, 76,407.12 and 31,498.86

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Solution

The fourth proportional to 55,364.50, 76,407.12 and 31,498.86 is: 43,470.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,364.50 : 76,407.12 = 31,498.86 : x
  2. Step 2: Convert to fraction form
    55,364.50/76,407.12 = 31,498.86/x
  3. Step 3: Cross multiply
    55,364.50x = 76,407.12 × 31,498.86
  4. Step 4: Simplify right side
    55,364.50x = 2,406,737,175.88
  5. Step 5: Solve for x
    x = 2,406,737,175.88/55,364.50
  6. Step 6: Final answer
    x = 43,470.77

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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.