Home / 77,649.51-116,451.75-30,254.03

Finding the Fourth Proportional to 77,649.51, 116,451.75 and 30,254.03

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Solution

The fourth proportional to 77,649.51, 116,451.75 and 30,254.03 is: 45,372.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,649.51 : 116,451.75 = 30,254.03 : x
  2. Step 2: Convert to fraction form
    77,649.51/116,451.75 = 30,254.03/x
  3. Step 3: Cross multiply
    77,649.51x = 116,451.75 × 30,254.03
  4. Step 4: Simplify right side
    77,649.51x = 3,523,134,863.28
  5. Step 5: Solve for x
    x = 3,523,134,863.28/77,649.51
  6. Step 6: Final answer
    x = 45,372.28

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1.5x scale

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.