Home / 55,911.52-77,157.66-30,760.48

Finding the Fourth Proportional to 55,911.52, 77,157.66 and 30,760.48

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Solution

The fourth proportional to 55,911.52, 77,157.66 and 30,760.48 is: 42,449.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,911.52 : 77,157.66 = 30,760.48 : x
  2. Step 2: Convert to fraction form
    55,911.52/77,157.66 = 30,760.48/x
  3. Step 3: Cross multiply
    55,911.52x = 77,157.66 × 30,760.48
  4. Step 4: Simplify right side
    55,911.52x = 2,373,406,657.28
  5. Step 5: Solve for x
    x = 2,373,406,657.28/55,911.52
  6. Step 6: Final answer
    x = 42,449.33

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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.