Home / 52,019.81-71,787.67-30,505.17

Finding the Fourth Proportional to 52,019.81, 71,787.67 and 30,505.17

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Solution

The fourth proportional to 52,019.81, 71,787.67 and 30,505.17 is: 42,097.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,019.81 : 71,787.67 = 30,505.17 : x
  2. Step 2: Convert to fraction form
    52,019.81/71,787.67 = 30,505.17/x
  3. Step 3: Cross multiply
    52,019.81x = 71,787.67 × 30,505.17
  4. Step 4: Simplify right side
    52,019.81x = 2,189,895,000.99
  5. Step 5: Solve for x
    x = 2,189,895,000.99/52,019.81
  6. Step 6: Final answer
    x = 42,097.33

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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.