Home / 55,769.58-76,962.16-30,620.70

Finding the Fourth Proportional to 55,769.58, 76,962.16 and 30,620.70

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Solution

The fourth proportional to 55,769.58, 76,962.16 and 30,620.70 is: 42,256.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,769.58 : 76,962.16 = 30,620.70 : x
  2. Step 2: Convert to fraction form
    55,769.58/76,962.16 = 30,620.70/x
  3. Step 3: Cross multiply
    55,769.58x = 76,962.16 × 30,620.70
  4. Step 4: Simplify right side
    55,769.58x = 2,356,635,212.71
  5. Step 5: Solve for x
    x = 2,356,635,212.71/55,769.58
  6. Step 6: Final answer
    x = 42,256.64

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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.