Home / 77,967.43-107,595.03-42,157.45

Finding the Fourth Proportional to 77,967.43, 107,595.03 and 42,157.45

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Solution

The fourth proportional to 77,967.43, 107,595.03 and 42,157.45 is: 58,177.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,967.43 : 107,595.03 = 42,157.45 : x
  2. Step 2: Convert to fraction form
    77,967.43/107,595.03 = 42,157.45/x
  3. Step 3: Cross multiply
    77,967.43x = 107,595.03 × 42,157.45
  4. Step 4: Simplify right side
    77,967.43x = 4,535,932,097.47
  5. Step 5: Solve for x
    x = 4,535,932,097.47/77,967.43
  6. Step 6: Final answer
    x = 58,177.27

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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.