Home / 42,835.01-64,210.12-20,306.11

Finding the Fourth Proportional to 42,835.01, 64,210.12 and 20,306.11

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Solution

The fourth proportional to 42,835.01, 64,210.12 and 20,306.11 is: 30,439.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,835.01 : 64,210.12 = 20,306.11 : x
  2. Step 2: Convert to fraction form
    42,835.01/64,210.12 = 20,306.11/x
  3. Step 3: Cross multiply
    42,835.01x = 64,210.12 × 20,306.11
  4. Step 4: Simplify right side
    42,835.01x = 1,303,857,759.83
  5. Step 5: Solve for x
    x = 1,303,857,759.83/42,835.01
  6. Step 6: Final answer
    x = 30,439.07

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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.