Home / 52,511.74-72,467.12-28,639.28

Finding the Fourth Proportional to 52,511.74, 72,467.12 and 28,639.28

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Solution

The fourth proportional to 52,511.74, 72,467.12 and 28,639.28 is: 39,522.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,511.74 : 72,467.12 = 28,639.28 : x
  2. Step 2: Convert to fraction form
    52,511.74/72,467.12 = 28,639.28/x
  3. Step 3: Cross multiply
    52,511.74x = 72,467.12 × 28,639.28
  4. Step 4: Simplify right side
    52,511.74x = 2,075,406,140.47
  5. Step 5: Solve for x
    x = 2,075,406,140.47/52,511.74
  6. Step 6: Final answer
    x = 39,522.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.