Home / 75,518.80-113,280.12-42,220.24

Finding the Fourth Proportional to 75,518.80, 113,280.12 and 42,220.24

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Solution

The fourth proportional to 75,518.80, 113,280.12 and 42,220.24 is: 63,331.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,518.80 : 113,280.12 = 42,220.24 : x
  2. Step 2: Convert to fraction form
    75,518.80/113,280.12 = 42,220.24/x
  3. Step 3: Cross multiply
    75,518.80x = 113,280.12 × 42,220.24
  4. Step 4: Simplify right side
    75,518.80x = 4,782,713,853.63
  5. Step 5: Solve for x
    x = 4,782,713,853.63/75,518.80
  6. Step 6: Final answer
    x = 63,331.43

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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.