Home / 55,767.08-76,958.70-30,618.20

Finding the Fourth Proportional to 55,767.08, 76,958.70 and 30,618.20

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Solution

The fourth proportional to 55,767.08, 76,958.70 and 30,618.20 is: 42,253.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,767.08 : 76,958.70 = 30,618.20 : x
  2. Step 2: Convert to fraction form
    55,767.08/76,958.70 = 30,618.20/x
  3. Step 3: Cross multiply
    55,767.08x = 76,958.70 × 30,618.20
  4. Step 4: Simplify right side
    55,767.08x = 2,356,336,868.34
  5. Step 5: Solve for x
    x = 2,356,336,868.34/55,767.08
  6. Step 6: Final answer
    x = 42,253.19

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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.