Home / 48,139.68-72,211-13,080.08

Finding the Fourth Proportional to 48,139.68, 72,211 and 13,080.08

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Solution

The fourth proportional to 48,139.68, 72,211 and 13,080.08 is: 19,620.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,139.68 : 72,211 = 13,080.08 : x
  2. Step 2: Convert to fraction form
    48,139.68/72,211 = 13,080.08/x
  3. Step 3: Cross multiply
    48,139.68x = 72,211 × 13,080.08
  4. Step 4: Simplify right side
    48,139.68x = 944,525,656.88
  5. Step 5: Solve for x
    x = 944,525,656.88/48,139.68
  6. Step 6: Final answer
    x = 19,620.52

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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.