Home / 77,634.04-107,026.48-65,649.28

Finding the Fourth Proportional to 77,634.04, 107,026.48 and 65,649.28

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Solution

The fourth proportional to 77,634.04, 107,026.48 and 65,649.28 is: 90,504.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,634.04 : 107,026.48 = 65,649.28 : x
  2. Step 2: Convert to fraction form
    77,634.04/107,026.48 = 65,649.28/x
  3. Step 3: Cross multiply
    77,634.04x = 107,026.48 × 65,649.28
  4. Step 4: Simplify right side
    77,634.04x = 7,026,211,352.93
  5. Step 5: Solve for x
    x = 7,026,211,352.93/77,634.04
  6. Step 6: Final answer
    x = 90,504.26

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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.