Home / 54,411.17-75,091-30,539.46

Finding the Fourth Proportional to 54,411.17, 75,091 and 30,539.46

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Solution

The fourth proportional to 54,411.17, 75,091 and 30,539.46 is: 42,146.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,411.17 : 75,091 = 30,539.46 : x
  2. Step 2: Convert to fraction form
    54,411.17/75,091 = 30,539.46/x
  3. Step 3: Cross multiply
    54,411.17x = 75,091 × 30,539.46
  4. Step 4: Simplify right side
    54,411.17x = 2,293,238,590.86
  5. Step 5: Solve for x
    x = 2,293,238,590.86/54,411.17
  6. Step 6: Final answer
    x = 42,146.47

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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.