Home / 55,902.71-77,146.94-30,752.21

Finding the Fourth Proportional to 55,902.71, 77,146.94 and 30,752.21

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Solution

The fourth proportional to 55,902.71, 77,146.94 and 30,752.21 is: 42,438.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,902.71 : 77,146.94 = 30,752.21 : x
  2. Step 2: Convert to fraction form
    55,902.71/77,146.94 = 30,752.21/x
  3. Step 3: Cross multiply
    55,902.71x = 77,146.94 × 30,752.21
  4. Step 4: Simplify right side
    55,902.71x = 2,372,438,899.74
  5. Step 5: Solve for x
    x = 2,372,438,899.74/55,902.71
  6. Step 6: Final answer
    x = 42,438.71

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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.