Home / 55,851.55-77,074.27-30,700.51

Finding the Fourth Proportional to 55,851.55, 77,074.27 and 30,700.51

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Solution

The fourth proportional to 55,851.55, 77,074.27 and 30,700.51 is: 42,366.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,851.55 : 77,074.27 = 30,700.51 : x
  2. Step 2: Convert to fraction form
    55,851.55/77,074.27 = 30,700.51/x
  3. Step 3: Cross multiply
    55,851.55x = 77,074.27 × 30,700.51
  4. Step 4: Simplify right side
    55,851.55x = 2,366,219,396.88
  5. Step 5: Solve for x
    x = 2,366,219,396.88/55,851.55
  6. Step 6: Final answer
    x = 42,366.23

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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.