Home / 55,891.12-77,130.06-30,397.79

Finding the Fourth Proportional to 55,891.12, 77,130.06 and 30,397.79

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Solution

The fourth proportional to 55,891.12, 77,130.06 and 30,397.79 is: 41,949.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,891.12 : 77,130.06 = 30,397.79 : x
  2. Step 2: Convert to fraction form
    55,891.12/77,130.06 = 30,397.79/x
  3. Step 3: Cross multiply
    55,891.12x = 77,130.06 × 30,397.79
  4. Step 4: Simplify right side
    55,891.12x = 2,344,582,980.92
  5. Step 5: Solve for x
    x = 2,344,582,980.92/55,891.12
  6. Step 6: Final answer
    x = 41,949.12

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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.