Home / 42,378.78-63,566.12-17,412.68

Finding the Fourth Proportional to 42,378.78, 63,566.12 and 17,412.68

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Solution

The fourth proportional to 42,378.78, 63,566.12 and 17,412.68 is: 26,118.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,378.78 : 63,566.12 = 17,412.68 : x
  2. Step 2: Convert to fraction form
    42,378.78/63,566.12 = 17,412.68/x
  3. Step 3: Cross multiply
    42,378.78x = 63,566.12 × 17,412.68
  4. Step 4: Simplify right side
    42,378.78x = 1,106,856,506.40
  5. Step 5: Solve for x
    x = 1,106,856,506.40/42,378.78
  6. Step 6: Final answer
    x = 26,118.18

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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.