Home / 55,884.06-77,118.62-30,390.12

Finding the Fourth Proportional to 55,884.06, 77,118.62 and 30,390.12

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Solution

The fourth proportional to 55,884.06, 77,118.62 and 30,390.12 is: 41,937.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,884.06 : 77,118.62 = 30,390.12 : x
  2. Step 2: Convert to fraction form
    55,884.06/77,118.62 = 30,390.12/x
  3. Step 3: Cross multiply
    55,884.06x = 77,118.62 × 30,390.12
  4. Step 4: Simplify right side
    55,884.06x = 2,343,643,964.08
  5. Step 5: Solve for x
    x = 2,343,643,964.08/55,884.06
  6. Step 6: Final answer
    x = 41,937.61

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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.