Home / 75,851.28-113,692.14-28,420.74

Finding the Fourth Proportional to 75,851.28, 113,692.14 and 28,420.74

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Solution

The fourth proportional to 75,851.28, 113,692.14 and 28,420.74 is: 42,599.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,851.28 : 113,692.14 = 28,420.74 : x
  2. Step 2: Convert to fraction form
    75,851.28/113,692.14 = 28,420.74/x
  3. Step 3: Cross multiply
    75,851.28x = 113,692.14 × 28,420.74
  4. Step 4: Simplify right side
    75,851.28x = 3,231,214,750.98
  5. Step 5: Solve for x
    x = 3,231,214,750.98/75,851.28
  6. Step 6: Final answer
    x = 42,599.34

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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.