Home / 42,309.73-63,451.81-12,719.71

Finding the Fourth Proportional to 42,309.73, 63,451.81 and 12,719.71

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Solution

The fourth proportional to 42,309.73, 63,451.81 and 12,719.71 is: 19,075.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,309.73 : 63,451.81 = 12,719.71 : x
  2. Step 2: Convert to fraction form
    42,309.73/63,451.81 = 12,719.71/x
  3. Step 3: Cross multiply
    42,309.73x = 63,451.81 × 12,719.71
  4. Step 4: Simplify right side
    42,309.73x = 807,088,622.18
  5. Step 5: Solve for x
    x = 807,088,622.18/42,309.73
  6. Step 6: Final answer
    x = 19,075.72

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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.