Home / 52,988.47-79,465.15-21,390.37

Finding the Fourth Proportional to 52,988.47, 79,465.15 and 21,390.37

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Solution

The fourth proportional to 52,988.47, 79,465.15 and 21,390.37 is: 32,078.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,988.47 : 79,465.15 = 21,390.37 : x
  2. Step 2: Convert to fraction form
    52,988.47/79,465.15 = 21,390.37/x
  3. Step 3: Cross multiply
    52,988.47x = 79,465.15 × 21,390.37
  4. Step 4: Simplify right side
    52,988.47x = 1,699,788,960.61
  5. Step 5: Solve for x
    x = 1,699,788,960.61/52,988.47
  6. Step 6: Final answer
    x = 32,078.47

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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.