Home / 55,621.42-76,756.53-30,470.74

Finding the Fourth Proportional to 55,621.42, 76,756.53 and 30,470.74

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Solution

The fourth proportional to 55,621.42, 76,756.53 and 30,470.74 is: 42,049.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,621.42 : 76,756.53 = 30,470.74 : x
  2. Step 2: Convert to fraction form
    55,621.42/76,756.53 = 30,470.74/x
  3. Step 3: Cross multiply
    55,621.42x = 76,756.53 × 30,470.74
  4. Step 4: Simplify right side
    55,621.42x = 2,338,828,268.93
  5. Step 5: Solve for x
    x = 2,338,828,268.93/55,621.42
  6. Step 6: Final answer
    x = 42,049.06

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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.