Home / 42,676.74-64,047.78-19,319.58

Finding the Fourth Proportional to 42,676.74, 64,047.78 and 19,319.58

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Solution

The fourth proportional to 42,676.74, 64,047.78 and 19,319.58 is: 28,994.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,676.74 : 64,047.78 = 19,319.58 : x
  2. Step 2: Convert to fraction form
    42,676.74/64,047.78 = 19,319.58/x
  3. Step 3: Cross multiply
    42,676.74x = 64,047.78 × 19,319.58
  4. Step 4: Simplify right side
    42,676.74x = 1,237,376,209.53
  5. Step 5: Solve for x
    x = 1,237,376,209.53/42,676.74
  6. Step 6: Final answer
    x = 28,994.16

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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.