Home / 55,515.28-76,612.90-30,364.78

Finding the Fourth Proportional to 55,515.28, 76,612.90 and 30,364.78

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Solution

The fourth proportional to 55,515.28, 76,612.90 and 30,364.78 is: 41,904.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,515.28 : 76,612.90 = 30,364.78 : x
  2. Step 2: Convert to fraction form
    55,515.28/76,612.90 = 30,364.78/x
  3. Step 3: Cross multiply
    55,515.28x = 76,612.90 × 30,364.78
  4. Step 4: Simplify right side
    55,515.28x = 2,326,333,853.66
  5. Step 5: Solve for x
    x = 2,326,333,853.66/55,515.28
  6. Step 6: Final answer
    x = 41,904.39

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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.