Home / 75,379.39-113,070.02-19,219.48

Finding the Fourth Proportional to 75,379.39, 113,070.02 and 19,219.48

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Solution

The fourth proportional to 75,379.39, 113,070.02 and 19,219.48 is: 28,829.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,379.39 : 113,070.02 = 19,219.48 : x
  2. Step 2: Convert to fraction form
    75,379.39/113,070.02 = 19,219.48/x
  3. Step 3: Cross multiply
    75,379.39x = 113,070.02 × 19,219.48
  4. Step 4: Simplify right side
    75,379.39x = 2,173,146,987.99
  5. Step 5: Solve for x
    x = 2,173,146,987.99/75,379.39
  6. Step 6: Final answer
    x = 28,829.46

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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.