Home / 82,072.31-123,130.40-29,482.25

Finding the Fourth Proportional to 82,072.31, 123,130.40 and 29,482.25

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Solution

The fourth proportional to 82,072.31, 123,130.40 and 29,482.25 is: 44,231.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,072.31 : 123,130.40 = 29,482.25 : x
  2. Step 2: Convert to fraction form
    82,072.31/123,130.40 = 29,482.25/x
  3. Step 3: Cross multiply
    82,072.31x = 123,130.40 × 29,482.25
  4. Step 4: Simplify right side
    82,072.31x = 3,630,160,472.34
  5. Step 5: Solve for x
    x = 3,630,160,472.34/82,072.31
  6. Step 6: Final answer
    x = 44,231.25

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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.