Home / 42,459.20-63,756.80-33,766.40

Finding the Fourth Proportional to 42,459.20, 63,756.80 and 33,766.40

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Solution

The fourth proportional to 42,459.20, 63,756.80 and 33,766.40 is: 50,703.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,459.20 : 63,756.80 = 33,766.40 : x
  2. Step 2: Convert to fraction form
    42,459.20/63,756.80 = 33,766.40/x
  3. Step 3: Cross multiply
    42,459.20x = 63,756.80 × 33,766.40
  4. Step 4: Simplify right side
    42,459.20x = 2,152,837,611.52
  5. Step 5: Solve for x
    x = 2,152,837,611.52/42,459.20
  6. Step 6: Final answer
    x = 50,703.68

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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.