Home / 83,090.90-124,670.17-38,690.35

Finding the Fourth Proportional to 83,090.90, 124,670.17 and 38,690.35

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Solution

The fourth proportional to 83,090.90, 124,670.17 and 38,690.35 is: 58,051.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,090.90 : 124,670.17 = 38,690.35 : x
  2. Step 2: Convert to fraction form
    83,090.90/124,670.17 = 38,690.35/x
  3. Step 3: Cross multiply
    83,090.90x = 124,670.17 × 38,690.35
  4. Step 4: Simplify right side
    83,090.90x = 4,823,532,511.86
  5. Step 5: Solve for x
    x = 4,823,532,511.86/83,090.90
  6. Step 6: Final answer
    x = 58,051.27

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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.