Home / 43,020-64,506.24-28,979.28

Finding the Fourth Proportional to 43,020, 64,506.24 and 28,979.28

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Solution

The fourth proportional to 43,020, 64,506.24 and 28,979.28 is: 43,452.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,020 : 64,506.24 = 28,979.28 : x
  2. Step 2: Convert to fraction form
    43,020/64,506.24 = 28,979.28/x
  3. Step 3: Cross multiply
    43,020x = 64,506.24 × 28,979.28
  4. Step 4: Simplify right side
    43,020x = 1,869,344,390.71
  5. Step 5: Solve for x
    x = 1,869,344,390.71/43,020
  6. Step 6: Final answer
    x = 43,452.91

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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.