Home / 71,015.13-106,421.16-52,147.14

Finding the Fourth Proportional to 71,015.13, 106,421.16 and 52,147.14

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Solution

The fourth proportional to 71,015.13, 106,421.16 and 52,147.14 is: 78,146.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,015.13 : 106,421.16 = 52,147.14 : x
  2. Step 2: Convert to fraction form
    71,015.13/106,421.16 = 52,147.14/x
  3. Step 3: Cross multiply
    71,015.13x = 106,421.16 × 52,147.14
  4. Step 4: Simplify right side
    71,015.13x = 5,549,559,129.48
  5. Step 5: Solve for x
    x = 5,549,559,129.48/71,015.13
  6. Step 6: Final answer
    x = 78,146.15

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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.