Home / 42,975.04-64,465.68-17,989.96

Finding the Fourth Proportional to 42,975.04, 64,465.68 and 17,989.96

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Solution

The fourth proportional to 42,975.04, 64,465.68 and 17,989.96 is: 26,986.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,975.04 : 64,465.68 = 17,989.96 : x
  2. Step 2: Convert to fraction form
    42,975.04/64,465.68 = 17,989.96/x
  3. Step 3: Cross multiply
    42,975.04x = 64,465.68 × 17,989.96
  4. Step 4: Simplify right side
    42,975.04x = 1,159,735,004.57
  5. Step 5: Solve for x
    x = 1,159,735,004.57/42,975.04
  6. Step 6: Final answer
    x = 26,986.25

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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.