Home / 70,035.23-105,036.82-20,114.93

Finding the Fourth Proportional to 70,035.23, 105,036.82 and 20,114.93

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Solution

The fourth proportional to 70,035.23, 105,036.82 and 20,114.93 is: 30,167.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,035.23 : 105,036.82 = 20,114.93 : x
  2. Step 2: Convert to fraction form
    70,035.23/105,036.82 = 20,114.93/x
  3. Step 3: Cross multiply
    70,035.23x = 105,036.82 × 20,114.93
  4. Step 4: Simplify right side
    70,035.23x = 2,112,808,281.72
  5. Step 5: Solve for x
    x = 2,112,808,281.72/70,035.23
  6. Step 6: Final answer
    x = 30,167.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.