Home / 63,390.90-87,479.16-34,319.30

Finding the Fourth Proportional to 63,390.90, 87,479.16 and 34,319.30

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Solution

The fourth proportional to 63,390.90, 87,479.16 and 34,319.30 is: 47,360.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,390.90 : 87,479.16 = 34,319.30 : x
  2. Step 2: Convert to fraction form
    63,390.90/87,479.16 = 34,319.30/x
  3. Step 3: Cross multiply
    63,390.90x = 87,479.16 × 34,319.30
  4. Step 4: Simplify right side
    63,390.90x = 3,002,222,969.69
  5. Step 5: Solve for x
    x = 3,002,222,969.69/63,390.90
  6. Step 6: Final answer
    x = 47,360.47

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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.