Home / 45,431.60-62,721.69-30,374.10

Finding the Fourth Proportional to 45,431.60, 62,721.69 and 30,374.10

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Solution

The fourth proportional to 45,431.60, 62,721.69 and 30,374.10 is: 41,933.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,431.60 : 62,721.69 = 30,374.10 : x
  2. Step 2: Convert to fraction form
    45,431.60/62,721.69 = 30,374.10/x
  3. Step 3: Cross multiply
    45,431.60x = 62,721.69 × 30,374.10
  4. Step 4: Simplify right side
    45,431.60x = 1,905,114,884.23
  5. Step 5: Solve for x
    x = 1,905,114,884.23/45,431.60
  6. Step 6: Final answer
    x = 41,933.70

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1.5x scale

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.