Home / 55,070.69-82,564.23-28,387.92

Finding the Fourth Proportional to 55,070.69, 82,564.23 and 28,387.92

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Solution

The fourth proportional to 55,070.69, 82,564.23 and 28,387.92 is: 42,560.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,070.69 : 82,564.23 = 28,387.92 : x
  2. Step 2: Convert to fraction form
    55,070.69/82,564.23 = 28,387.92/x
  3. Step 3: Cross multiply
    55,070.69x = 82,564.23 × 28,387.92
  4. Step 4: Simplify right side
    55,070.69x = 2,343,826,756.10
  5. Step 5: Solve for x
    x = 2,343,826,756.10/55,070.69
  6. Step 6: Final answer
    x = 42,560.33

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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.