Home / 42,756.12-64,051.14-20,585.07

Finding the Fourth Proportional to 42,756.12, 64,051.14 and 20,585.07

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Solution

The fourth proportional to 42,756.12, 64,051.14 and 20,585.07 is: 30,837.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,756.12 : 64,051.14 = 20,585.07 : x
  2. Step 2: Convert to fraction form
    42,756.12/64,051.14 = 20,585.07/x
  3. Step 3: Cross multiply
    42,756.12x = 64,051.14 × 20,585.07
  4. Step 4: Simplify right side
    42,756.12x = 1,318,497,200.48
  5. Step 5: Solve for x
    x = 1,318,497,200.48/42,756.12
  6. Step 6: Final answer
    x = 30,837.63

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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.