Home / 52,129.07-78,181.61-31,075.05

Finding the Fourth Proportional to 52,129.07, 78,181.61 and 31,075.05

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Solution

The fourth proportional to 52,129.07, 78,181.61 and 31,075.05 is: 46,605.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,129.07 : 78,181.61 = 31,075.05 : x
  2. Step 2: Convert to fraction form
    52,129.07/78,181.61 = 31,075.05/x
  3. Step 3: Cross multiply
    52,129.07x = 78,181.61 × 31,075.05
  4. Step 4: Simplify right side
    52,129.07x = 2,429,497,284.46
  5. Step 5: Solve for x
    x = 2,429,497,284.46/52,129.07
  6. Step 6: Final answer
    x = 46,605.43

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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.