Home / 55,725.63-76,902.78-30,575.13

Finding the Fourth Proportional to 55,725.63, 76,902.78 and 30,575.13

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Solution

The fourth proportional to 55,725.63, 76,902.78 and 30,575.13 is: 42,194.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,725.63 : 76,902.78 = 30,575.13 : x
  2. Step 2: Convert to fraction form
    55,725.63/76,902.78 = 30,575.13/x
  3. Step 3: Cross multiply
    55,725.63x = 76,902.78 × 30,575.13
  4. Step 4: Simplify right side
    55,725.63x = 2,351,312,495.86
  5. Step 5: Solve for x
    x = 2,351,312,495.86/55,725.63
  6. Step 6: Final answer
    x = 42,194.45

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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.