Home / 74,780.96-103,197.80-42,956.01

Finding the Fourth Proportional to 74,780.96, 103,197.80 and 42,956.01

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Solution

The fourth proportional to 74,780.96, 103,197.80 and 42,956.01 is: 59,279.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,780.96 : 103,197.80 = 42,956.01 : x
  2. Step 2: Convert to fraction form
    74,780.96/103,197.80 = 42,956.01/x
  3. Step 3: Cross multiply
    74,780.96x = 103,197.80 × 42,956.01
  4. Step 4: Simplify right side
    74,780.96x = 4,432,965,514.00
  5. Step 5: Solve for x
    x = 4,432,965,514.00/74,780.96
  6. Step 6: Final answer
    x = 59,279.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.