Home / 78,973.04-118,514.91-45,647.25

Finding the Fourth Proportional to 78,973.04, 118,514.91 and 45,647.25

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Solution

The fourth proportional to 78,973.04, 118,514.91 and 45,647.25 is: 68,502.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,973.04 : 118,514.91 = 45,647.25 : x
  2. Step 2: Convert to fraction form
    78,973.04/118,514.91 = 45,647.25/x
  3. Step 3: Cross multiply
    78,973.04x = 118,514.91 × 45,647.25
  4. Step 4: Simplify right side
    78,973.04x = 5,409,879,452.24
  5. Step 5: Solve for x
    x = 5,409,879,452.24/78,973.04
  6. Step 6: Final answer
    x = 68,502.86

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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.