Home / 55,987.20-77,260.84-30,493.06

Finding the Fourth Proportional to 55,987.20, 77,260.84 and 30,493.06

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Solution

The fourth proportional to 55,987.20, 77,260.84 and 30,493.06 is: 42,079.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,987.20 : 77,260.84 = 30,493.06 : x
  2. Step 2: Convert to fraction form
    55,987.20/77,260.84 = 30,493.06/x
  3. Step 3: Cross multiply
    55,987.20x = 77,260.84 × 30,493.06
  4. Step 4: Simplify right side
    55,987.20x = 2,355,919,160.39
  5. Step 5: Solve for x
    x = 2,355,919,160.39/55,987.20
  6. Step 6: Final answer
    x = 42,079.60

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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.