Home / 45,383.60-68,075.68-15,780.72

Finding the Fourth Proportional to 45,383.60, 68,075.68 and 15,780.72

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Solution

The fourth proportional to 45,383.60, 68,075.68 and 15,780.72 is: 23,671.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,383.60 : 68,075.68 = 15,780.72 : x
  2. Step 2: Convert to fraction form
    45,383.60/68,075.68 = 15,780.72/x
  3. Step 3: Cross multiply
    45,383.60x = 68,075.68 × 15,780.72
  4. Step 4: Simplify right side
    45,383.60x = 1,074,283,244.89
  5. Step 5: Solve for x
    x = 1,074,283,244.89/45,383.60
  6. Step 6: Final answer
    x = 23,671.18

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1.5x scale

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.