Home / 52,478.80-72,418.08-28,605.28

Finding the Fourth Proportional to 52,478.80, 72,418.08 and 28,605.28

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Solution

The fourth proportional to 52,478.80, 72,418.08 and 28,605.28 is: 39,473.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,478.80 : 72,418.08 = 28,605.28 : x
  2. Step 2: Convert to fraction form
    52,478.80/72,418.08 = 28,605.28/x
  3. Step 3: Cross multiply
    52,478.80x = 72,418.08 × 28,605.28
  4. Step 4: Simplify right side
    52,478.80x = 2,071,539,455.46
  5. Step 5: Solve for x
    x = 2,071,539,455.46/52,478.80
  6. Step 6: Final answer
    x = 39,473.83

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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.