Home / 42,961.74-64,380.30-30,506.16

Finding the Fourth Proportional to 42,961.74, 64,380.30 and 30,506.16

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Solution

The fourth proportional to 42,961.74, 64,380.30 and 30,506.16 is: 45,715.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,961.74 : 64,380.30 = 30,506.16 : x
  2. Step 2: Convert to fraction form
    42,961.74/64,380.30 = 30,506.16/x
  3. Step 3: Cross multiply
    42,961.74x = 64,380.30 × 30,506.16
  4. Step 4: Simplify right side
    42,961.74x = 1,963,995,732.65
  5. Step 5: Solve for x
    x = 1,963,995,732.65/42,961.74
  6. Step 6: Final answer
    x = 45,715.00

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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.