Home / 48,611.20-72,907.80-13,543.60

Finding the Fourth Proportional to 48,611.20, 72,907.80 and 13,543.60

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Solution

The fourth proportional to 48,611.20, 72,907.80 and 13,543.60 is: 20,312.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,611.20 : 72,907.80 = 13,543.60 : x
  2. Step 2: Convert to fraction form
    48,611.20/72,907.80 = 13,543.60/x
  3. Step 3: Cross multiply
    48,611.20x = 72,907.80 × 13,543.60
  4. Step 4: Simplify right side
    48,611.20x = 987,434,080.08
  5. Step 5: Solve for x
    x = 987,434,080.08/48,611.20
  6. Step 6: Final answer
    x = 20,312.89

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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.