Home / 75,905.61-113,858.18-20,501.61

Finding the Fourth Proportional to 75,905.61, 113,858.18 and 20,501.61

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Solution

The fourth proportional to 75,905.61, 113,858.18 and 20,501.61 is: 30,752.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,905.61 : 113,858.18 = 20,501.61 : x
  2. Step 2: Convert to fraction form
    75,905.61/113,858.18 = 20,501.61/x
  3. Step 3: Cross multiply
    75,905.61x = 113,858.18 × 20,501.61
  4. Step 4: Simplify right side
    75,905.61x = 2,334,275,899.16
  5. Step 5: Solve for x
    x = 2,334,275,899.16/75,905.61
  6. Step 6: Final answer
    x = 30,752.35

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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.