Home / 54,830.32-75,667.20-30,957.36

Finding the Fourth Proportional to 54,830.32, 75,667.20 and 30,957.36

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Solution

The fourth proportional to 54,830.32, 75,667.20 and 30,957.36 is: 42,721.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,830.32 : 75,667.20 = 30,957.36 : x
  2. Step 2: Convert to fraction form
    54,830.32/75,667.20 = 30,957.36/x
  3. Step 3: Cross multiply
    54,830.32x = 75,667.20 × 30,957.36
  4. Step 4: Simplify right side
    54,830.32x = 2,342,456,750.59
  5. Step 5: Solve for x
    x = 2,342,456,750.59/54,830.32
  6. Step 6: Final answer
    x = 42,721.92

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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.