Home / 75,686.40-113,529.60-52,066.80

Finding the Fourth Proportional to 75,686.40, 113,529.60 and 52,066.80

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Solution

The fourth proportional to 75,686.40, 113,529.60 and 52,066.80 is: 78,100.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,686.40 : 113,529.60 = 52,066.80 : x
  2. Step 2: Convert to fraction form
    75,686.40/113,529.60 = 52,066.80/x
  3. Step 3: Cross multiply
    75,686.40x = 113,529.60 × 52,066.80
  4. Step 4: Simplify right side
    75,686.40x = 5,911,122,977.28
  5. Step 5: Solve for x
    x = 5,911,122,977.28/75,686.40
  6. Step 6: Final answer
    x = 78,100.20

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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.