Home / 77,370.23-106,789.91-47,172.20

Finding the Fourth Proportional to 77,370.23, 106,789.91 and 47,172.20

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Solution

The fourth proportional to 77,370.23, 106,789.91 and 47,172.20 is: 65,109.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,370.23 : 106,789.91 = 47,172.20 : x
  2. Step 2: Convert to fraction form
    77,370.23/106,789.91 = 47,172.20/x
  3. Step 3: Cross multiply
    77,370.23x = 106,789.91 × 47,172.20
  4. Step 4: Simplify right side
    77,370.23x = 5,037,515,577.64
  5. Step 5: Solve for x
    x = 5,037,515,577.64/77,370.23
  6. Step 6: Final answer
    x = 65,109.22

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1.5x scale

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.