Home / 40,799.22-61,200.48-12,719.76

Finding the Fourth Proportional to 40,799.22, 61,200.48 and 12,719.76

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Solution

The fourth proportional to 40,799.22, 61,200.48 and 12,719.76 is: 19,080.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,799.22 : 61,200.48 = 12,719.76 : x
  2. Step 2: Convert to fraction form
    40,799.22/61,200.48 = 12,719.76/x
  3. Step 3: Cross multiply
    40,799.22x = 61,200.48 × 12,719.76
  4. Step 4: Simplify right side
    40,799.22x = 778,455,417.48
  5. Step 5: Solve for x
    x = 778,455,417.48/40,799.22
  6. Step 6: Final answer
    x = 19,080.15

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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.