Home / 40,730.56-61,075.20-14,431.60

Finding the Fourth Proportional to 40,730.56, 61,075.20 and 14,431.60

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Solution

The fourth proportional to 40,730.56, 61,075.20 and 14,431.60 is: 21,640.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,730.56 : 61,075.20 = 14,431.60 : x
  2. Step 2: Convert to fraction form
    40,730.56/61,075.20 = 14,431.60/x
  3. Step 3: Cross multiply
    40,730.56x = 61,075.20 × 14,431.60
  4. Step 4: Simplify right side
    40,730.56x = 881,412,856.32
  5. Step 5: Solve for x
    x = 881,412,856.32/40,730.56
  6. Step 6: Final answer
    x = 21,640.09

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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.