Home / 54,859.32-75,705.30-30,985.92

Finding the Fourth Proportional to 54,859.32, 75,705.30 and 30,985.92

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Solution

The fourth proportional to 54,859.32, 75,705.30 and 30,985.92 is: 42,760.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,859.32 : 75,705.30 = 30,985.92 : x
  2. Step 2: Convert to fraction form
    54,859.32/75,705.30 = 30,985.92/x
  3. Step 3: Cross multiply
    54,859.32x = 75,705.30 × 30,985.92
  4. Step 4: Simplify right side
    54,859.32x = 2,345,798,369.38
  5. Step 5: Solve for x
    x = 2,345,798,369.38/54,859.32
  6. Step 6: Final answer
    x = 42,760.25

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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.