Home / 71,514.10-98,689.62-39,683.08

Finding the Fourth Proportional to 71,514.10, 98,689.62 and 39,683.08

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Solution

The fourth proportional to 71,514.10, 98,689.62 and 39,683.08 is: 54,762.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,514.10 : 98,689.62 = 39,683.08 : x
  2. Step 2: Convert to fraction form
    71,514.10/98,689.62 = 39,683.08/x
  3. Step 3: Cross multiply
    71,514.10x = 98,689.62 × 39,683.08
  4. Step 4: Simplify right side
    71,514.10x = 3,916,308,085.63
  5. Step 5: Solve for x
    x = 3,916,308,085.63/71,514.10
  6. Step 6: Final answer
    x = 54,762.74

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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.