Home / 54,711.45-75,506.18-30,840.35

Finding the Fourth Proportional to 54,711.45, 75,506.18 and 30,840.35

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Solution

The fourth proportional to 54,711.45, 75,506.18 and 30,840.35 is: 42,562.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,711.45 : 75,506.18 = 30,840.35 : x
  2. Step 2: Convert to fraction form
    54,711.45/75,506.18 = 30,840.35/x
  3. Step 3: Cross multiply
    54,711.45x = 75,506.18 × 30,840.35
  4. Step 4: Simplify right side
    54,711.45x = 2,328,636,486.63
  5. Step 5: Solve for x
    x = 2,328,636,486.63/54,711.45
  6. Step 6: Final answer
    x = 42,562.14

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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.