Home / 42,462.30-63,633.09-31,281.06

Finding the Fourth Proportional to 42,462.30, 63,633.09 and 31,281.06

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Solution

The fourth proportional to 42,462.30, 63,633.09 and 31,281.06 is: 46,877.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,462.30 : 63,633.09 = 31,281.06 : x
  2. Step 2: Convert to fraction form
    42,462.30/63,633.09 = 31,281.06/x
  3. Step 3: Cross multiply
    42,462.30x = 63,633.09 × 31,281.06
  4. Step 4: Simplify right side
    42,462.30x = 1,990,510,506.28
  5. Step 5: Solve for x
    x = 1,990,510,506.28/42,462.30
  6. Step 6: Final answer
    x = 46,877.12

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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.